{"id":4378,"date":"2019-09-15T10:53:09","date_gmt":"2019-09-15T07:23:09","guid":{"rendered":"https:\/\/cfd-mrk.ir\/?page_id=4378"},"modified":"2020-06-22T10:25:06","modified_gmt":"2020-06-22T06:55:06","slug":"les-turbulence-model","status":"publish","type":"page","link":"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/les-turbulence-model\/","title":{"rendered":"\u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES"},"content":{"rendered":"\n<h2 class=\"has-text-align-center wp-block-heading\"><strong>\u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af (LES)<\/strong><\/h2>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\"><strong> Turbulence Modeling Using Large Eddy Simulation (LES) Methods <\/strong><\/h2>\n\n\n<p><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062c\u0631\u06cc\u0627\u0646 \u0622\u0634\u0641\u062a\u0647 \u0628\u0648\u0633\u06cc\u0644\u0647 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc\u06cc \u0628\u0627 \u0637\u06cc\u0641 \u0648\u0633\u06cc\u0639\u06cc \u0627\u0632 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0632\u0645\u0627\u0646\u06cc\/\u0637\u0648\u0644\u06cc (Length\/Time Scales) \u062a\u0639\u0631\u06cc\u0641 \u0648 \u062a\u0648\u0635\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0639\u0645\u0648\u0645\u0627 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\/\u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af (Large Eddies\/Scales) \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0627\u0646\u062f\u0627\u0632\u0647 \u0637\u0648\u0644 \u0645\u0634\u062e\u0635\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0645\u062a\u0648\u0633\u0637 (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0628\u0631\u0634\u06cc \u06cc\u0627 \u0642\u0637\u0631 \u0647\u06cc\u062f\u0631\u0648\u0644\u06cc\u06a9\u06cc \u06cc\u06a9 \u062f\u0633\u062a\u06af\u0627\u0647) \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0647 \u062f\u0631 \u062d\u0627\u0644\u06cc\u06a9\u0647 \u06af\u0631\u062f\u0627\u0628\u0647\u200e\u0647\u0627\/\u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 (Small Eddies\/Scales) \u0645\u0628\u06cc\u0646 \u0627\u062a\u0644\u0627\u0641 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0647\u0633\u062a\u0646\u062f. \u0627\u0632 \u062a\u0638\u0631 \u062a\u0626\u0648\u0631\u06cc \u062d\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645 \u062a\u0645\u0627\u0645 \u0637\u06cc\u0641\u200c\u0647\u0627\u06cc \u0627\u0628\u0639\u0627\u062f\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634 \u0634\u0646\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 Direct Numerical Simulation: DNS \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0627\u0633\u062a \u0648 \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u0647\u06cc\u0686 \u06af\u0648\u0646\u0647 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0627\u0636\u0627\u0641\u06cc \u062f\u06cc\u06af\u0631\u06cc \u062f\u0631 \u0622\u0646 \u0646\u06cc\u0633\u062a. \u0627\u0645\u0627 \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 DNS \u0628\u0631\u0627\u06cc \u0645\u0633\u0627\u0626\u0644 \u0645\u0647\u0646\u062f\u0633\u06cc \u062f\u0631\u06af\u06cc\u0631 \u0628\u0627 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0628\u0627\u0644\u0627 \u0627\u0645\u06a9\u0627\u0646 \u067e\u0630\u06cc\u0631 \u0646\u06cc\u0633\u062a \u0686\u0631\u0627\u06a9\u0647 \u0647\u0632\u06cc\u0646\u0647 \u0628\u06a9\u0627\u0631\u06af\u06cc\u0631\u06cc \u0631\u0648\u0634 DNS \u0628\u0631\u0627\u06cc \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u062a\u0645\u0627\u0645\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627 \u0628\u0627 \u0627\u0628\u0639\u0627\u062f \u0645\u062e\u062a\u0644\u0641 \u0645\u062a\u0646\u0627\u0633\u0628 \u0628\u0647 \u062a\u0648\u0627\u0646 \u0633\u0648\u0645 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0622\u0634\u0641\u062a\u0647 (<strong>Re<\/strong>t) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u0648 \u067e\u0631 \u0648\u0627\u0636\u062d \u0627\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0631\u06cc\u0646\u0648\u0644\u062f\u0632\u0647\u0627\u06cc \u0628\u0627\u0644\u0627 \u0627\u06cc\u0646 \u0647\u0632\u06cc\u0646\u0647 \u0633\u0631\u0633\u0627\u0645 \u0622\u0648\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u062f\u0631 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0628\u0635\u0648\u0631\u062a \u0645\u0633\u062a\u0642\u06cc\u0645 \u062d\u0644 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc\u06a9\u0647 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0628\u062f\u0633\u062a \u0645\u06cc\u200c\u0622\u06cc\u0646\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 LES \u0631\u0648\u0634\u06cc \u0628\u06cc\u0646 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS \u0648 DNS \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u0637\u0648\u0631 \u062e\u0644\u0627\u0635\u0647 \u0627\u0635\u0648\u0644 \u0628\u0646\u06cc\u0627\u062f\u06cc\u0646 \u062a\u0648\u0633\u0639\u0647 \u0631\u0648\u0634 LES \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/span><\/p>\n<ul>\n<li style=\"text-align: right;\"><strong><span style=\"color: #000000;\">\u0645\u0645\u0646\u062a\u0645\u060c \u062c\u0631\u0645\u060c \u0627\u0646\u0631\u0698\u06cc \u0648 \u0633\u0627\u06cc\u0631 \u0627\u0633\u06a9\u0627\u0644\u0631\u0647\u0627\u06cc \u067e\u0633\u06cc\u0648 (Passive) \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0627\u0646\u062a\u0642\u0627\u0644 \u0645\u06cc\u200c\u06cc\u0627\u0628\u0646\u062f.<\/span><\/strong><\/li>\n<li style=\"text-align: right;\"><strong><span style=\"color: #000000;\">\u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0628\u0647 \u0645\u0633\u0626\u0644\u0647 \u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0648\u062f\u0647 (Problem-Dependent) \u0648 \u0628\u0648\u0633\u06cc\u0644\u0647 \u0647\u0646\u062f\u0633\u0647 \u0648 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062d\u0627\u06a9\u0645 \u062f\u06cc\u06a9\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.<\/span><\/strong><\/li>\n<li style=\"text-align: right;\"><strong><span style=\"color: #000000;\">\u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u06a9\u0645\u062a\u0631\u06cc \u0628\u0647 \u0647\u0646\u062f\u0633\u0647 \u062f\u0627\u0631\u0646\u062f. \u0628\u06cc\u0634\u062a\u0631 \u062a\u0645\u0627\u06cc\u0644 \u0628\u0647 \u0627\u06cc\u0632\u0648\u062a\u0631\u0648\u067e\u06cc\u06a9 \u0628\u0648\u062f\u0646 \u062f\u0627\u0634\u062a\u0647 \u0648 \u0628\u0647 \u062a\u0628\u0639 \u0622\u0646 \u0639\u0645\u0648\u0645\u06cc\u200c\u062a\u0631 \u0647\u0633\u062a\u0646\u062f.<\/span><\/strong><\/li>\n<li style=\"text-align: right;\"><strong><span style=\"color: #000000;\">\u0634\u0627\u0646\u0633 \u06cc\u0627\u0641\u062a\u0646 \u06cc\u06a9 \u0645\u062f\u0644 \u0622\u0634\u0641\u062a\u06af\u06cc \u06a9\u0644\u06cc \u0628\u0631\u0627\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u0628\u0633\u06cc\u0627\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u06cc\u0627\u0641\u062a\u0646 \u0645\u062f\u0644 \u0628\u0631\u0627\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/strong><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u062a\u0646\u0647\u0627 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u0628\u06a9\u0647 \u062f\u0631\u0634\u062a\u200c\u062a\u0631 \u0648 \u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u0628\u0632\u0631\u06af\u062a\u0631 \u0631\u0627 \u062f\u0631 \u0631\u0648\u0634 LES \u0646\u0633\u0628\u062a \u0628\u0647 \u0631\u0648\u0634 DNS \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0645\u06cc\u200c\u0633\u0627\u0632\u062f. \u0628\u0647 \u0647\u0631 \u062d\u0627\u0644 LES \u0647\u0645\u0686\u0646\u0627\u0646 \u0628\u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u0645\u0644\u0627\u062d\u0638\u0647\u200c\u0627\u06cc \u0646\u06cc\u0627\u0632\u0645\u0646\u062f \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u0631\u06cc\u0632\u062a\u0631 \u0646\u0633\u0628\u062a \u0628\u0647 \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u0645\u062a\u062f\u0627\u0648\u0644 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc RANS \u0627\u0633\u062a.\u0628\u0639\u0644\u0627\u0648\u0647 \u0628\u06a9\u0627\u0631\u06af\u06cc\u0631\u06cc \u0631\u0648\u0634 LES \u0645\u0633\u062a\u0644\u0632\u0645 \u062d\u0644 \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u06cc\u06a9 \u0628\u0627\u0632\u0647 \u0632\u0645\u0627\u0646\u06cc \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u0646 \u0628\u0647 \u067e\u0627\u0633\u062e\u200c\u0647\u0627\u06cc \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0647\u0632\u06cc\u0646\u0647 (\u0627\u0632 \u0646\u0642\u0637\u0647 \u0646\u0638\u0631 \u0632\u0645\u0627\u0646\u060c \u062d\u0627\u0641\u0638\u0647 \u0648 \u0642\u062f\u0631\u062a \u067e\u0631\u062f\u0627\u0632\u0634) \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u062a\u0645\u0627\u0645&nbsp; \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u0628\u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc (Orders Of Magnitudes) \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u0646\u0627\u0638\u0631 RANS \u067e\u0627\u06cc\u0627 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631\u06cc \u0627\u0632 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u067e\u0631\u062f\u0627\u0632\u0634\u06af\u0631 \u0633\u0631\u06cc\u0639 \u0648 \u067e\u0631\u0642\u062f\u0631\u062a HPC \u0646\u0638\u06cc\u0631 \u0627\u0628\u0631\u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631\u0647\u0627 \u0648 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u067e\u0631\u062f\u0627\u0632\u0634 \u0645\u0648\u0627\u0632\u06cc \u062f\u0631 \u0628\u06a9\u0627\u0631\u06af\u06cc\u0631\u06cc \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0645\u0647\u0646\u062f\u0633\u06cc \u0646\u0647 \u062a\u0646\u0647\u0627 \u06cc\u06a9 \u0646\u06cc\u0627\u0632 \u0628\u0644\u06a9\u0647 \u06cc\u06a9 \u0627\u0644\u0632\u0627\u0645 \u0627\u0633\u062a. \u0646\u0642\u0637\u0647 \u0636\u0639\u0641 \u0627\u0635\u0644\u06cc \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u062f\u0631 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u0632\u06cc&nbsp; \u0628\u0627 \u062f\u0642\u062a \u0628\u0627\u0644\u0627 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0686\u0631\u0627\u06a9\u0647 \u062f\u0631 \u0646\u0632\u062f\u06cc\u06a9\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u062d\u062a\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0647\u0645 \u0628\u0647 \u0646\u0633\u0628\u062a \u06a9\u0648\u0686\u06a9 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u0648 \u0646\u06cc\u0627\u0632\u0645\u0646\u062f \u062d\u0644 \u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0647 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 (Reynolds Number Dependent Resolution) \u0647\u0633\u062a\u0646\u062f. \u0627\u06cc\u0646 \u0645\u0647\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u0628\u0631\u0627\u06cc \u062d\u0644 \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 (Wall Bounded Flows) \u0631\u0627 \u0628\u0647 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u067e\u0627\u06cc\u06cc\u0646 (\u0628\u06cc\u0646 10 \u0647\u0632\u0627\u0631 \u062a\u0627 100 \u0647\u0632\u0627\u0631) \u0648 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u06a9\u0648\u0686\u06a9\u060c \u0645\u062d\u062f\u0648\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f.&nbsp;<\/span><\/p>\n<p><\/p>\n<h2 style=\"text-align: right;\"><span style=\"color: #800000;\"><strong>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES<\/strong><\/span><\/h2>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u06af\u0641\u062a\u0647 \u0634\u062f \u062f\u0631 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0628\u0635\u0648\u0631\u062a \u0645\u0633\u062a\u0642\u06cc\u0645 \u0648 \u0634\u0628\u06cc\u0647 \u0631\u0648\u0634 DNS \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc\u06a9\u0647 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u0631\u0627 \u0628\u0627\u06cc\u062f \u0647\u0645\u0627\u0646\u0646\u062f \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0646\u0645\u0648\u062f. \u0627\u06cc\u0646\u06a9\u0627\u0631 \u0628\u0627 \u062a\u0639\u0631\u06cc\u0641 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f. \u0627\u06cc\u0646 \u062a\u0627\u0628\u0639 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u0646\u062f\u0647 \u0628\u0631\u0627\u0633\u0627\u0633 \u0627\u0628\u0639\u0627\u062f \u0634\u0628\u06a9\u0647 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u0647\u0631 \u0686\u0642\u062f\u0631 \u062a\u0627\u0628\u0639 \u0641\u06cc\u0644\u062a\u0631 \u06a9\u0646\u0646\u062f\u0647 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u06a9\u0648\u0686\u06a9\u062a\u0631 (\u0627\u0628\u0639\u0627\u062f \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0634\u0628\u06a9\u0647) \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f \u0686\u0631\u0628\u0634 LES \u0628\u0647 \u0633\u0645\u062a DNS \u0628\u06cc\u0634\u062a\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f \u0648 \u0628\u0631\u0639\u06a9\u0633 \u0647\u0631 \u0686\u0642\u062f\u0631 \u0628\u0631\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af\u062a\u0631 \u062a\u0646\u0638\u06cc\u0645 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f \u0631\u0641\u062a\u0627\u0631 LES \u0628\u0647 RANS \u0634\u0628\u06cc\u0647\u200c\u062a\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 \u062f\u0631 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u0647 \u0628\u0647 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u0627\u0628\u062a\u062f\u0627 \u0644\u0627\u0632\u0645\u0633\u062a \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u06a9\u0645 \u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0648\u0646\u062f. \u062d\u0627\u0635\u0644 \u0627\u06cc\u0646 \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af\u060c \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0648 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 (Sub-Grid Scale) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u06a9\u0647 \u0627\u0648\u0644\u06cc \u0628\u0635\u0648\u0631\u062a \u0645\u0633\u062a\u0642\u06cc\u0645 \u0648 \u062f\u0648\u0645\u06cc \u0628\u0627 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc \u062f\u0631 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 LES\u060c&nbsp; \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0646\u0627\u0648\u06cc\u0631 \u0627\u0633\u062a\u0648\u06a9\u0633\u060c \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 \u0648 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u062a\u0635\u0627\u062f\u0641\u06cc \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0648\u0631\u0648\u062f\u06cc\u060c \u0633\u0647 \u062f\u0633\u062a\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u062f\u0627\u06af\u0627\u0646\u0647\u200c\u0627\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062d\u0644 \u0634\u0648\u0646\u062f. \u0647\u062f\u0641 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u0627\u06cc\u0646 \u067e\u0633\u062a \u0628\u06cc\u0627\u0646 \u062a\u0626\u0648\u0631\u06cc \u0648 \u0645\u0644\u0627\u062d\u0638\u0627\u062a \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0648 \u062d\u0644 \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0627\u0633\u062a.<\/span><\/p>\n<p><\/p>\n<h3 style=\"text-align: right;\"><span style=\"color: #ff0000;\"><strong>\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u0648\u06cc\u0631 \u0627\u0633\u062a\u0648\u06a9\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647<\/strong><\/span><\/h3>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u06a9\u0645 \u0628\u0631 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc LES \u0628\u0631\u0627\u0633\u0627\u0633 \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u067e\u0627\u06cc\u0627\u06cc (\u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0647 \u0632\u0645\u0627\u0646) \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u062f\u0631 \u0641\u0636\u0627\u06cc \u0641\u0648\u0631\u06cc\u0647 ( \u0639\u062f\u062f \u0645\u0648\u062c: Wave-Number) \u0648 \u06cc\u0627 \u0641\u0636\u0627\u06cc \u067e\u06cc\u06a9\u0631\u0647 \u0641\u06cc\u0632\u06cc\u06a9\u06cc (Physical) \u0628\u062f\u0633\u062a \u0645\u06cc\u200c\u0622\u06cc\u062f. \u0641\u0631\u0622\u06cc\u0646\u062f \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a\u060c \u0628\u0637\u0648\u0631 \u0645\u0624\u062b\u0631\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9\u200c\u062a\u0631 \u0627\u0632 \u0628\u0627\u0646\u062f \u0641\u06cc\u0644\u062a\u0631 (\u0394) \u06cc\u0627 \u0627\u0628\u0639\u0627\u062f \u0634\u0628\u06a9\u0647 \u0647\u0633\u062a\u0646\u062f \u0631\u0627 \u0641\u06cc\u0644\u062a\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u0635\u0644\u0647 \u0628\u0631 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u062d\u0627\u06a9\u0645 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0641\u0631\u0645 \u06a9\u0644\u06cc \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f:<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-2.png\" alt=\"\" class=\"wp-image-4426\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-2.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-2-300x225.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-2-768x576.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-2-360x270.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption> \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645 \u0646\u0627\u067e\u0630\u06cc\u0631 <\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0641\u0648\u0642<\/span><\/p>\n<ul>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong> \u03a6<\/strong>: \u0645\u062a\u063a\u06cc\u0631 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0648\u0646\u062f\u0647\u060c&nbsp;<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>D<\/strong>: \u062f\u0627\u0645\u0646\u0647 \u0633\u06cc\u0627\u0644<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>G<\/strong>: \u062a\u0627\u0628\u0639 \u0641\u06cc\u0644\u062a\u0631\u06a9\u0646\u0646\u062f\u0647 (\u06a9\u0647 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af-\u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0634\u0648\u0646\u062f\u0647 \u0628\u0635\u0648\u0631\u062a \u0645\u0633\u062a\u0642\u06cc\u0645- \u0645\u06cc\u200c\u0628\u0627\u0634\u062f)\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>V<\/strong>: \u062d\u062c\u0645 \u0627\u0644\u0645\u0627\u0646 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03a4<\/strong>ij: \u062a\u0646\u0634 \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 (Subgrid Scale Stress)\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03c3<\/strong>ij: \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0641\u0634\u0627\u0631\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u0644\u0632\u062c\u062a \u0645\u0644\u06a9\u0648\u0644\u06cc\u060c&nbsp;<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>h<\/strong>s: \u0622\u0646\u062a\u0627\u0644\u067e\u06cc \u0645\u062d\u0633\u0648\u0633 (Sensible Enthalpy)\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03bb<\/strong>: \u0647\u062f\u0627\u06cc\u062a \u06af\u0631\u0645\u0627\u06cc\u06cc\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03bc<\/strong>SGS: \u0644\u0632\u062c\u062a \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 (Subgrid Viscosity) \u0648&nbsp;<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>P<\/strong>rSGS=0.85 \u0639\u062f\u062f \u067e\u0631\u0627\u0646\u062a\u0644 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0646\u06a9\u062a\u0647 \u0645\u0647\u0645 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0645\u062d\u0627\u0633\u0628\u0647 <strong>\u03a4<\/strong>ij \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u06cc\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u0646\u0648\u0639\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0627\u06cc\u0646 \u0631\u0648\u0634\u200c\u0647\u0627 \u0645\u0639\u0631\u0641\u06cc \u0648 \u062a\u0634\u0631\u06cc\u062d \u0645\u06cc\u200c\u06af\u0631\u062f\u0646\u062f. \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 <strong>\u03a4<\/strong>ij \u062f\u0631 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc LES \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631 \u0646\u06cc\u0632 \u0628\u0627\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0628\u062f\u0633\u062a \u0622\u06cc\u062f. \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645 \u067e\u0630\u06cc\u0631 \u0645\u062a\u063a\u06cc\u0631\u0647\u0627 \u0628\u0631\u0627\u0633\u0627\u0633 \u0645\u0639\u06cc\u0627\u0631 \u0645\u062a\u0648\u0633\u0637 \u06af\u06cc\u0631\u06cc \u062c\u0631\u0645\u06cc \u0641\u0627\u0648\u0631 (Favre) \u0641\u06cc\u0644\u062a\u0631 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. &nbsp;\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u062a\u0631\u0627\u06a9\u0645 \u067e\u0630\u06cc\u0631 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3.png\" alt=\"\" class=\"wp-image-4436\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-300x225.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-768x576.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-360x270.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption>  \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u0627\u0648\u06cc\u0631\u0627\u0633\u062a\u0648\u06a9\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645 \u067e\u0630\u06cc\u0631 <\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642\u060c \u03bc \u0644\u0632\u062c\u062a \u0645\u0644\u06a9\u0648\u0644\u06cc \u0648 k \u0647\u062f\u0627\u06cc\u062a \u06af\u0631\u0645\u0627\u06cc\u06cc \u0628\u0648\u062f\u0647 \u0648 \u0646\u0633\u0628\u062a \u0628\u0647 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af \u062d\u0633\u0627\u0633 \u0646\u06cc\u0633\u062a\u0646\u062f. <strong>\u03a4<\/strong>ij\u0646\u06cc\u0632 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0628\u0627\u06cc\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u0648\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 \u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u06cc\u0646 \u062a\u0646\u0634\u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0645\u0639\u0631\u0648\u0641 \u0628\u0647 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 (Subgrid-Scale Models) \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u062a\u0634\u0631\u06cc\u062d \u0634\u062f\u0647\u200c\u0627\u0646\u062f.<\/span><\/p>\n<p><\/p>\n<h3 style=\"text-align: right;\"><span style=\"color: #ff0000;\"><strong>\u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 (Subgrid-Scale Models)<\/strong><\/span><\/h3>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062a\u0646\u0634\u200c\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 (Subgrid-Scale Stresses) \u062d\u0627\u0635\u0644 \u0627\u0632 \u0641\u0631\u0622\u06cc\u0646\u062f \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af\u060c \u0646\u0627\u0645\u0639\u0644\u0648\u0645 \u0628\u0648\u062f\u0647 \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0634\u0648\u0646\u062f. \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u0647\u0627\u06cc\u06cc \u0645\u0627\u0646\u0646\u062f Ansys Fluent\u060c \u0647\u0645\u0627\u0646\u0646\u062f \u0645\u062f\u0644\u200c\u0647\u0627\u06cc RANS\u060c \u0627\u0632 <a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/rans-turbulence-models\/\"><strong><span style=\"color: #3366ff;\">\u0641\u0631\u0636\u06cc\u0647 \u0628\u0648\u0632\u06cc\u0646\u0633\u06a9<\/span> <\/strong><\/a>\u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062a\u0646\u0634\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u0647 \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0631\u0627\u0633\u0627\u0633 \u0641\u0631\u0636\u06cc\u0647 \u0628\u0648\u0632\u06cc\u0646\u0633\u06a9 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c <strong>\u03a4<\/strong>ij\u060c \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645\u200c\u0646\u0627\u067e\u0630\u06cc\u0631 \u0648 \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631 \u0628\u0635\u0648\u0631\u062a \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0632\u06cc\u0631 \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0645\u06cc\u200c\u0634\u0648\u0646\u062f:<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"403\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-1.png\" alt=\"\" class=\"wp-image-4452\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-1.png 640w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-1-300x189.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Turbulent-Flow-LES-3-1-360x227.png 360w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>\u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645\u200c\u0646\u0627\u067e\u0630\u06cc\u0631 \u0648 \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631<\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0641\u0648\u0642<\/span><\/p>\n<ul>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"> <b>S<\/b>ij<b> &nbsp;\u0305 <\/b>\u062a\u0627\u0646\u0633\u0648\u0631 \u0646\u0631\u062e \u06a9\u0631\u0646\u0634\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03bc<\/strong>t: \u0644\u0632\u062c\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u03bc<\/strong>sgs: \u0644\u0632\u062c\u062a \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>M<\/strong>sgs: \u0639\u062f\u062f \u0645\u0627\u062e \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>q<\/strong>j: \u0634\u0627\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>h<\/strong>s: \u0622\u0646\u062a\u0627\u0644\u067e\u06cc \u0645\u062d\u0633\u0648\u0633 \u0648<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>P<\/strong>rsgs=0.85\u060c \u0639\u062f\u062f \u067e\u0631\u0627\u0646\u062a\u0644 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0647\u0631 \u062f\u0648 \u0631\u0698\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u062a\u0631\u0627\u06a9\u0645 \u0646\u0627\u067e\u0630\u06cc\u0631 \u0648 \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631 \u062a\u0631\u0645 <strong>\u03a4<\/strong>kk \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0628\u0631\u0627\u06cc \u0633\u0627\u062f\u0647\u200c\u0633\u0627\u0632\u06cc \u062d\u0630\u0641 \u06a9\u0631\u062f\u0647 \u0648 \u06cc\u0627 \u0627\u06cc\u0646\u06a9\u0647 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u0645\u062a\u063a\u06cc\u0631 \u0641\u0634\u0627\u0631 \u0641\u06cc\u0644\u062a\u0631 \u0634\u062f\u0647 \u0627\u0636\u0627\u0641\u0647 \u0646\u0645\u0648\u062f. \u0627\u0644\u0628\u062a\u0647 \u0631\u0627\u0628\u0637\u0647\u200c\u0627\u06cc \u0628\u0631\u0627\u06cc <strong>\u03a4<\/strong>kk \u0628\u0631 \u062d\u0633\u0628 \u0639\u062f\u062f \u0645\u0627\u062e \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u0631\u0627\u0628\u0637\u0647 \u062f\u0631 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u062c\u0631\u06cc\u0627\u0646 \u062a\u0631\u0627\u06a9\u0645\u200c\u067e\u0630\u06cc\u0631 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u0646\u062a\u0638\u0627\u0631 \u0628\u0631 \u0627\u06cc\u0646\u0633\u062a \u0632\u0645\u0627\u0646\u06cc\u06a9\u0647 \u0639\u0639\u062f \u0645\u0627\u062e \u0622\u0634\u0641\u062a\u0647 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0648\u0686\u06a9 \u0628\u0627\u0634\u062f \u0639\u062f\u062f \u0645\u0627\u062e \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0646\u06cc\u0632 \u06a9\u0648\u0686\u06a9 \u0634\u0648\u062f. \u0627\u0645\u0627 \u0646\u06a9\u062a\u0647 \u0645\u0647\u0645 \u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642 \u0648\u062c\u0648\u062f \u0644\u0632\u062c\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647\u060c <strong>\u03bc<\/strong>t\u060c \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u0648\u062f. \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc (Smagorinsky-Lilly)\u060c \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc (dynamic Smagorinsky-Lilly)\u060c \u0645\u062f\u0644 WALE \u0648 \u0645\u062f\u0644 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc (dynamic kinetic energy subgrid-scale) \u0627\u0632 \u0645\u0639\u0631\u0648\u0641\u200c\u062a\u0631\u06cc\u0646 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u0646\u062f\u0647 <strong>\u03bc<\/strong>t \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Ansys Fluent \u0646\u06cc\u0632 \u0627\u0632 \u0622\u0646\u200c\u0647\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0627\u062f\u0627\u0645\u0647 \u0627\u06cc\u0646 \u0645\u062f\u0644\u200c\u0647\u0627 \u0628\u0637\u0648\u0631 \u0645\u0641\u0635\u0644 \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u0647 \u0634\u062f\u0647\u200c\u0627\u0646\u062f.&nbsp;<\/span><\/p>\n<p><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #ff6600;\"><strong>\u0645\u062f\u0644\u200c \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc (Smagorinsky-Lilly)<\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u06cc\u0646 \u0645\u062f\u0644 \u0633\u0627\u062f\u0647 \u0627\u0628\u062a\u062f\u0627 \u062a\u0648\u0633\u0637 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u06af\u0631\u062f\u06cc\u062f. \u0627\u0645\u0627 \u0639\u0645\u0648\u0645\u0627 \u0641\u0631\u0645 \u0646\u0647\u0627\u06cc\u06cc \u0622\u0646 \u0628\u0627 \u0639\u0646\u0648\u0627\u0646 \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 <strong>\u03bc<\/strong>t \u0628\u06a9\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.&nbsp;<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"48\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Smagorinsky-lilly-LES.png\" alt=\"\" class=\"wp-image-4465\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Smagorinsky-lilly-LES.png 640w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Smagorinsky-lilly-LES-300x23.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Smagorinsky-lilly-LES-360x27.png 360w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>\u0631\u0648\u0627\u0628\u0637 \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc<\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642<\/span><\/p>\n<ul>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong> L<\/strong>s: \u0627\u0646\u062f\u0627\u0632\u0647 \u0637\u0648\u0644 \u0627\u062e\u062a\u0644\u0627\u0637 (Mixing Length) \u0628\u0631\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>k<\/strong>: \u062b\u0627\u0628\u062a \u0648\u0646 \u06a9\u0627\u0631\u0645\u0646<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>d<\/strong>: \u0641\u0627\u0635\u0644\u0647 \u062a\u0627 \u0646\u0632\u062f\u06cc\u06a9\u062a\u0631\u06cc\u0646 \u062f\u06cc\u0648\u0627\u0631\u0647<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>C<\/strong>s: \u062b\u0627\u0628\u062a \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc \u0648<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u0394<\/strong>: \u0627\u0628\u0639\u0627\u062f \u0634\u0628\u06a9\u0647 \u0645\u062d\u0644\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.&nbsp;<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0644\u0627\u06cc\u0644\u06cc \u0645\u0642\u062f\u0627\u0631 <strong>C<\/strong>s=0.23 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0627\u06cc\u0632\u0648\u062a\u0631\u0648\u067e\u06cc\u06a9 \u0647\u0645\u06af\u0646 \u062f\u0631 \u0632\u06cc\u0631\u0628\u0631\u062f (Subrange) \u0627\u06cc\u0646\u0631\u0633\u06cc\u0627\u06cc\u06cc (Inertial) \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u06a9\u0631\u062f. \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0628\u0627\u0639\u062b \u0645\u06cc\u0631\u0627\u06cc\u06cc \u0628\u06cc\u0634 \u0627\u0632 \u062d\u062f \u0646\u0648\u0627\u0633\u0627\u0646\u0627\u062a \u0645\u0642\u06cc\u0627\u0633 \u0628\u0632\u0631\u06af \u0628\u0627 \u0648\u062c\u0648\u062f \u0628\u0631\u0634 \u0645\u062a\u0648\u0633\u0637 \u0648 \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u06af\u0630\u0631\u0627\u06cc \u0646\u0632\u062f\u06cc\u06a9 \u0645\u0631\u0632 \u062c\u0627\u0645\u062f \u0634\u062f\u0647 \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u062f\u0631 \u0686\u0646\u06cc\u0646 \u0645\u0646\u0627\u0637\u0642\u06cc \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0628\u062f. \u062e\u0644\u0627\u0635\u0647 \u0627\u06cc\u0646\u06a9\u0647 <strong>C<\/strong>s \u062b\u0627\u0628\u062a \u06a9\u0644\u06cc \u0646\u0628\u0648\u062f\u0647 \u0648 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0646\u0642\u0637\u0647 \u0636\u0639\u0641 \u0645\u062f\u0644 \u0645\u0630\u06a9\u0648\u0631 \u0627\u0633\u062a. \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc \u0645\u0642\u062f\u0627\u0631 0.1 \u0628\u0631\u0627\u06cc <strong>C<\/strong>s \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0628\u0647\u062a\u0631\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0628\u0631\u0627\u06cc \u0622\u0646 \u0628\u0631\u0634\u0645\u0631\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0637\u06cc\u0641 \u0648\u0633\u06cc\u0639\u06cc \u0627\u0632 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627 \u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a. \u0644\u0627\u0632\u0645 \u0628\u0647 \u0630\u06a9\u0631 \u0627\u0633\u062a \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631\u060c \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0646\u06cc\u0632 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\n<p><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #ff6600;\"><strong>\u0645\u062f\u0644\u200c \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 (Dynamic Smagorinsky-Lilly)<\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062c\u0631\u0645\u0627\u0646\u0648 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 (Germano et al) \u0648 \u0645\u062a\u0639\u0627\u0642\u0628\u0627 \u0644\u0627\u06cc\u0644\u06cc \u0641\u0631\u0622\u06cc\u0646\u062f\u06cc \u0631\u0627 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u06a9\u0631\u062f\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0628\u0631\u0627\u0633\u0627\u0633 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u062d\u0644 \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0648 \u0645\u0634\u062e\u0635\u0627\u062a \u0645\u0642\u06cc\u0627\u0633\u060c \u062b\u0627\u0628\u062a \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc\u060c Cs\u060c \u0628\u0635\u0648\u0631\u062a \u062f\u06cc\u0646\u0627\u0645\u06a9\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062f\u06cc\u06af\u0631 \u0628\u0647 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0645\u0634\u062e\u0635 \u0628\u0631\u0627\u06cc Cs \u0646\u06cc\u0627\u0632\u06cc \u0646\u06cc\u0633\u062a. \u062f\u0631 \u0648\u0627\u0642\u0639 \u0645\u0641\u0647\u0648\u0645 \u0641\u0631\u0622\u06cc\u0646\u062f \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc\u060c \u0628\u06a9\u0627\u0631\u06af\u06cc\u0631\u06cc \u06cc\u06a9 \u0641\u06cc\u0644\u062a\u0631 \u062b\u0627\u0646\u0648\u06cc\u0647 \u0645\u0639\u0631\u0648\u0641 \u0628\u0647 \u0641\u06cc\u0644\u062a\u0631 \u062a\u0633\u062a (Test Filter) \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0631\u06a9\u062a \u0627\u0633\u062a. \u067e\u0647\u0646\u0627\u06cc \u0641\u06cc\u0644\u062a\u0631 \u062c\u062f\u06cc\u062f\u060c \u0394\u02c6\u060c \u062f\u0648 \u0628\u0631\u0627\u0628\u0631 \u0639\u0631\u0636 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0628\u06a9\u0647\u060c \u0394\u060c \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0647\u0631 \u062f\u0648 \u0641\u06cc\u0644\u062a\u0631 \u06cc\u06a9 \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u062d\u0644 \u0634\u062f\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u0644\u06a9\u0646 \u0645\u06cc\u062f\u0627\u0646\u200c\u0647\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062d\u0644 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0627\u06cc\u0646 \u062f\u0648 \u0641\u06cc\u0644\u062a\u0631\u060c \u062f\u0631 \u0633\u0647\u0645 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u06a9\u0648\u0686\u06a9 \u0633\u0627\u06cc\u0632 \u0634\u062f\u0647 \u0628\u0627 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0645\u062a\u0641\u0627\u0648\u062a \u0647\u0633\u062a\u0646\u062f. \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u0631\u062a\u0628\u0637 \u0628\u0627 \u0627\u06cc\u0646 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062b\u0627\u0628\u062a \u0645\u062f\u0644 \u0628\u06a9\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0686\u06af\u0627\u0644\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0645\u062f\u0644 \u0645\u0630\u06a9\u0648\u0631 \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0637\u0628\u0642 \u062a\u0648\u0636\u06cc\u062e\u0627\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a\u062e\u0631\u0627\u062c \u0634\u062f\u0647 \u0627\u0633\u062a. <\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"288\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Dynamic-Smagorinsky-lilly-LES.png\" alt=\"\" class=\"wp-image-4477\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Dynamic-Smagorinsky-lilly-LES.png 640w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Dynamic-Smagorinsky-lilly-LES-300x135.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Dynamic-Smagorinsky-lilly-LES-360x162.png 360w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9<\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0631 \u062f\u0648 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0628\u0631\u0627\u0633\u0627\u0633 \u0641\u06cc\u0644\u062a\u0631\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u0648 \u062a\u0633\u062a \u0628\u0647 \u0631\u0648\u0634 \u0645\u0634\u0627\u0628\u0647 \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u0628\u062f\u0633\u062a \u0645\u06cc\u200c\u0622\u06cc\u0646\u062f. Lij \u0628\u0627 \u062d\u0644 \u0645\u06cc\u062f\u0627\u0646 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u0642\u0627\u0628\u0644 \u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u0633\u062a. \u0636\u0631\u06cc\u0628 <strong>C<\/strong> \u062f\u0631 \u0647\u0631 \u062f\u0648 \u0631\u0627\u0628\u0637\u0647 \u062a\u0627\u0646\u0633\u0648\u0631 \u062a\u0646\u0634 \u06cc\u06a9\u0633\u0627\u0646\u060c \u0645\u0633\u062a\u0642\u0644 \u0627\u0632 \u0641\u0631\u0622\u06cc\u0646\u062f \u0641\u06cc\u0644\u062a\u0631\u06cc\u0646\u06af \u0648 \u0628\u0635\u0648\u0631\u062a <strong>C<\/strong>=<strong>C<\/strong>s^2 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 <strong>C<\/strong>s=\u221a<strong>C<\/strong> \u0628\u062f\u0633\u062a \u0622\u0645\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc \u0644\u0627\u06cc\u0644\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0632\u0645\u0627\u0646 \u0648 \u0645\u06a9\u0627\u0646 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0645\u062a\u063a\u06cc\u0631 \u0627\u0633\u062a. \u0627\u0644\u0628\u062a\u0647 \u0644\u0627\u0632\u0645 \u0627\u0633\u062a \u062f\u0631 \u0627\u0628\u062a\u062f\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0645\u0642\u062f\u0627\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636\u06cc \u0628\u0631\u0627\u06cc <strong>C<\/strong>s \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a \u06a9\u0647 \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 0 \u06cc\u0627 0.23 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.&nbsp;<\/span><\/p>\n<p><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #ff6600;\">&nbsp;<strong>\u0645\u062f\u0644 Wall-Adapting Local Eddy-Viscosity: WALE<\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631\u0645\u062f\u0644 WALE \u0644\u0632\u062c\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"314\" height=\"188\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WALE-LES.png\" alt=\"\" class=\"wp-image-4486\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WALE-LES.png 314w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WALE-LES-300x180.png 300w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><figcaption>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 WALE \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647  <strong>\u03bc<\/strong>t. <\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642\u060c Cw=0.5 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u0637\u06cc \u0641\u0639\u0627\u0644\u06cc\u062a\u200c\u0647\u0627\u06cc \u062a\u062d\u0642\u06cc\u0642\u0627\u062a\u06cc \u0641\u0634\u0631\u062f\u0647 \u0648 \u0645\u0646\u0633\u062c\u0645 \u062f\u0631 \u0637\u0648\u0644 \u06cc\u06a9 \u067e\u0631\u0648\u0698\u0647 \u062a\u062d\u0642\u06cc\u0642\u0627\u062a\u06cc \u062f\u0631 \u0627\u062a\u062d\u0627\u062f\u06cc\u0647 \u0627\u0631\u0648\u067e\u0627 \u06a9\u0647 \u062a\u0648\u0633\u0639\u0647 \u062f\u0647\u0646\u062f\u06af\u0627\u0646 \u0645\u062f\u0644 \u0627\u0635\u0644\u06cc \u0646\u06cc\u0632 \u062c\u0632\u0621 \u062a\u06cc\u0645 \u067e\u0631\u0648\u0698\u0647 \u0628\u0648\u062f\u0646\u062f \u0645\u0642\u062f\u0627\u0631 \u0628\u0647\u06cc\u0646\u0647 0.325 \u0628\u0631\u0627\u06cc Cw \u0628\u062f\u0633\u062a \u0622\u0645\u062f \u06a9\u0647 \u062f\u0631 \u062d\u0627\u0644 \u062d\u0627\u0636\u0631 \u062c\u0632\u0621 \u067e\u06cc\u0634\u200c \u0641\u0631\u0636 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0646\u06cc\u0632 \u0647\u0645 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0628\u0627\u0642\u06cc \u0646\u0648\u0634\u062a\u0627\u0631\u060c \u062a\u0631\u0645\u200c\u0647\u0627\u060c \u0627\u0635\u0644\u0627\u062d\u0627\u062a \u0648 \u0631\u0648\u0627\u0628\u0637 \u0647\u0645\u0627\u0646\u0646\u062f \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u06a9\u0647 \u0627\u0632 \u067e\u0631\u062f\u0627\u062e\u062a\u0646 \u0645\u062c\u062f\u062f \u0628\u0647 \u0622\u0646\u200c\u0647\u0627 \u062e\u0648\u062f\u062f\u0627\u0631\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a. \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc \u0645\u062f\u0644 WALE \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0631\u0641\u062a\u0627\u0631 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0631\u0627 \u0628\u0637\u0648\u0631 \u0645\u0646\u0627\u0633\u0628\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u062f. \u0645\u0632\u06cc\u062a \u062f\u06cc\u06af\u0631 \u0645\u062f\u0644 WALE \u0627\u06cc\u0646\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0645\u0642\u062f\u0627\u0631 \u0644\u0632\u062c\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0628\u0631\u0634\u06cc \u0622\u0631\u0627\u0645 (Laminar Shear Flow) \u0635\u0641\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0627\u06cc\u0646 \u0645\u0647\u0645 \u0628\u0627\u0639\u062b \u0635\u062d\u06cc\u062d \u0631\u0641\u062a\u0627\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0646\u0648\u0627\u062d\u06cc \u0622\u0631\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0631\u0639\u06a9\u0633\u060c \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u0628\u0631\u0627\u06cc \u0646\u0648\u0627\u062d\u06cc \u0622\u0631\u0627\u0645\u060c \u0644\u0632\u062c\u062a \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0627\u06cc \u063a\u06cc\u0631 \u0635\u0641\u0631 \u062a\u0648\u0644\u06cc\u062f \u06a9\u0631\u062f\u0647 \u0648 \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u06a9\u0627\u0645\u0644\u0627 \u0622\u0634\u0641\u062a\u0647 \u062f\u0631 \u0645\u06cc\u200c\u0628\u06cc\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062a\u0648\u0636\u06cc\u062d\u0627\u062a\u060c \u0645\u062f\u0644 WALE \u0646\u0633\u0628\u062a \u0628\u0647 \u0645\u062f\u0644 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc \u062f\u0631 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u0632\u06cc \u0622\u0631\u0627\u0645 \u0648 \u0622\u0634\u0641\u062a\u0647\u060c \u0627\u0631\u062c\u062d\u06cc\u062a \u062f\u0627\u0631\u062f.\u00a0<\/span><\/p>\n<p>\u00a0<\/p>\n<h4 style=\"text-align: right;\"><strong><span style=\"color: #ff6600;\">\u0645\u062f\u0644 Algebraic Wall-Modeled LES: WMLES<\/span><\/strong><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0639\u0644\u06cc\u200c\u0631\u063a\u0645 \u06a9\u0627\u0631\u0628\u0631\u062f \u0628\u0633\u06cc\u0627\u0631 \u06af\u0633\u062a\u0631\u062f\u0647 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc LES \u062f\u0631 \u062c\u0627\u0645\u0639\u0647 \u0622\u06a9\u0627\u062f\u0645\u06cc\u06a9\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u062f\u0644\u200c\u0647\u0627 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0645\u0647\u0646\u062f\u0633\u06cc \u0686\u0646\u062f\u0627\u0646 \u062c\u0630\u0627\u0628 \u0646\u06cc\u0633\u062a. \u062f\u0644\u06cc\u0644 \u0627\u06cc\u0646 \u0627\u0645\u0631\u060c \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0631\u0627\u06cc \u0631\u0633\u06cc\u062f\u0646 \u0628\u0647 \u062f\u0642\u062a \u0645\u0646\u0627\u0633\u0628 \u062f\u0631 \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u0632\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0686\u0631\u0627\u06a9\u0647 \u062f\u0631 \u0646\u0632\u062f\u06cc\u06a9\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u060c \u062d\u062a\u06cc \u0628\u0632\u0631\u06af\u062a\u0631\u06cc\u0646 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0637\u06cc\u0641 \u0622\u0634\u0641\u062a\u06af\u06cc\u060c \u0627\u0632 \u0644\u062d\u0627\u0638 \u0647\u0646\u062f\u0633\u06cc \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0648\u0686\u06a9 \u0628\u0648\u062f\u0647 \u0648 \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0647 \u0634\u0628\u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631 \u0631\u06cc\u0632 \u0648 \u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0648\u0686\u06a9 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f. \u0628\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u062e\u0644\u0627\u0641 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS \u062a\u0631\u0627\u06a9\u0645 \u0634\u0628\u06a9\u0647 \u062a\u0646\u0647\u0627 \u062f\u0631 \u062c\u0647\u062a \u0639\u0645\u0648\u062f \u0628\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u06a9\u0627\u0641\u06cc \u0646\u0628\u0648\u062f\u0647 \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u0634\u0628\u06a9\u0647 \u062f\u0631 \u0647\u0645\u0647 \u062c\u0647\u062a\u200c\u0647\u0627\u06cc \u0639\u0645\u0648\u062f \u0648 \u0645\u0648\u0627\u0632\u06cc \u0628\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0631\u06cc\u0632 \u0634\u0648\u062f. \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u06cc\u0646 \u0645\u0647\u0645 \u062a\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u0647 \u0628\u0627 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u067e\u0627\u06cc\u06cc\u0646 \u0648 \u062f\u0631 \u0627\u0628\u0639\u0627\u062f \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0648\u0686\u06a9 \u062f\u0633\u062a\u06cc\u0627\u0641\u062a\u0646\u06cc \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u062f\u0631\u06a9 \u0628\u0647\u062a\u0631\u060c \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0627\u0628\u0639\u0627\u062f \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0646\u0628\u0627\u06cc\u062f \u062e\u06cc\u0644\u06cc \u0628\u0632\u0631\u06af\u062a\u0631 \u0627\u0632 \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0627\u0634\u062f (\u062d\u062f\u0627\u06a9\u062b\u0631 100 \u0628\u0631\u0627\u0628\u0631). \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062e\u0627\u0637\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 LES \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0648 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u062e\u06cc\u0644\u06cc \u0645\u0647\u0645 \u06cc\u0627 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0646\u06cc\u0633\u062a \u06cc\u0627 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0628\u0648\u0627\u0633\u0637\u0647 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0622\u0631\u0627\u0645 \u0627\u0633\u062a\u060c \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0645\u06cc\u200c\u06af\u0631\u062f\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0647 \u0647\u0631\u0635\u0648\u0631\u062a\u060c \u062a\u0646\u0647\u0627 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0627\u0646\u062f\u06a9\u06cc \u0628\u0627 \u0686\u0646\u06cc\u0646 \u062e\u0635\u0648\u0635\u06cc\u0627\u062a\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u0646\u062f \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc\u06cc \u063a\u06cc\u0631 \u0627\u0632 LES \u0645\u0637\u0644\u0648\u0628 \u0627\u0633\u062a. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u06cc\u06a9 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0627\u0645\u06cc\u062f\u0648\u0627\u0631 \u06a9\u0646\u0646\u062f\u0647 \u0628\u0631\u0627\u06cc \u067e\u0648\u0634\u0634 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u200c\u0647\u0627\u06cc \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u062f\u0631 \u0645\u062f\u0644\u0633\u0627\u0632\u06cc LES \u0631\u0648\u0634 (Algebraic Wall-Modeled LES: WMLES) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634\u060c \u0628\u062e\u0634 RANS \u0645\u062f\u0644 \u062a\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0628\u062e\u0634 \u062f\u0627\u062e\u0644\u06cc \u0646\u0627\u062d\u06cc\u0647 \u0644\u06af\u0627\u0631\u06cc\u062a\u0645\u06cc \u0641\u0639\u0627\u0644 \u0634\u062f\u0647 \u0648 \u0633\u0627\u06cc\u0631 \u0628\u062e\u0634\u200c\u0647\u0627\u06cc \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 LES \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u067e\u0648\u0634\u0634 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. <\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0632 \u0622\u0646\u062c\u0627\u0626\u06cc\u06a9\u0647 \u0628\u062e\u0634 \u062f\u0627\u062e\u0644\u06cc \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0647 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0648\u0627\u0628\u0633\u062a\u0647 \u0627\u0633\u062a \u0644\u0630\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0634\u0628\u06a9\u0647 \u0631\u0627 \u062a\u063a\u06cc\u06cc\u0631 \u0646\u062f\u0627\u062f. \u0627\u0644\u0628\u062a\u0647 \u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u0632\u06cc \u0627\u0632 \u0645\u0642\u06cc\u0627\u0633 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0628\u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u0635\u0631\u0641 \u0646\u0638\u0631 \u0646\u0645\u06cc\u200c\u0634\u0648\u062f (\u0647\u0645\u0627\u0646\u0646\u062f \u06a9\u0627\u0647\u0634 \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0627\u0628\u0639\u0627\u062f \u0628\u062f\u0646\u0647 \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632). \u062f\u0631 \u0648\u0627\u0642\u0639 \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0644\u0627\u0632\u0645\u0633\u062a \u0641\u0627\u0635\u0644\u0647 \u06a9\u0644\u06cc \u0634\u0628\u06a9\u0647\u200c\u0647\u0627 \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0628\u062f \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u062a\u0639\u062f\u0627\u062f \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062a\u0639\u062f\u0627\u062f \u0646\u0648\u062f\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u0628\u0631 \u0648\u0627\u062d\u062f \u062d\u062c\u0645 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f. <\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06af\u0632\u06cc\u0646\u0647 \u062c\u0627\u0644\u0628 \u062f\u06cc\u06af\u0631 \u0648 \u0627\u062d\u062a\u0645\u0627\u0644\u0627 \u0628\u0647\u062a\u0631\u06cc\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 WMLES \u0632\u0645\u0627\u0646\u06cc\u0633\u062a \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0628\u0627 Embeded LES: ELES \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Ansys Fluent\u00a0 \u062a\u0631\u06a9\u06cc\u0628 \u0634\u0648\u062f.\u00a0 \u0645\u062f\u0644 ELES \u0646\u0627\u062d\u06cc\u0647 LES \u0631\u0627 \u0628\u0647 \u0646\u0648\u0627\u062d\u06cc \u06a9\u0648\u0686\u06a9\u062a\u0631 \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0631\u062f\u0647 \u0648 \u0645\u0646\u0627\u0637\u0642 \u0628\u062d\u0631\u0627\u0646\u06cc \u06a9\u0645\u062a\u0631\u06cc \u0631\u0627 \u0628\u0627 RANS \u067e\u0648\u0634\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062a\u0631\u0641\u0646\u062f\u060c \u0639\u0645\u0644\u06a9\u0631\u062f WMLES \u0628\u0631\u0627\u06cc \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0628\u0627\u0644\u0627 \u062f\u0631 \u062f\u0627\u0645\u0646\u0647 LES \u062a\u0648\u0633\u0639\u0647 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f.<\/span><\/p>\n<h5 style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 WMLES<\/strong><\/span><\/h5>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0627\u0635\u0644\u06cc Algebraic WMLES \u062a\u0648\u0633\u0637 \u0634\u0631 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 (Shur) \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0634\u062f. \u0628\u0639\u062f\u0647\u0627 \u0627\u06cc\u0646 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0628\u0627 \u0645\u062f\u0644 \u0637\u0648\u0644 \u0645\u062e\u062a\u0644\u0637 \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0645\u062f\u0644 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc \u0648 \u062a\u0627\u0628\u0639 \u0645\u06cc\u0631\u0627\u06cc\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 (Wall Damping) \u067e\u06cc\u0648\u0645\u0644\u06cc (Piomelli) \u062a\u0631\u06a9\u06cc\u0628 \u0634\u062f. \u062f\u0631 \u0645\u062f\u0644 \u0634\u0631 \u0644\u0632\u062c\u062a \u0633\u06cc\u0646\u0645\u0627\u062a\u06cc\u06a9\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc\u060c \u03bdt\u060c \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0642\u06cc\u0627\u0633 \u0637\u0648\u0644 \u062a\u0631\u06a9\u06cc\u0628\u06cc (Hybrid Length Scale) \u0648 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"153\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES.png\" alt=\"\" class=\"wp-image-4507\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES.png 512w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-300x90.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-360x108.png 360w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption> <strong>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 WMLES<\/strong> <\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06a9\u0647 <strong>d<\/strong>w \u0641\u0627\u0635\u0644\u0647 \u0627\u0632 \u062f\u06cc\u0648\u0627\u0631\u0647\u060c <strong>S<\/strong> \u0646\u0631\u062e \u06a9\u0631\u0646\u0634 \u0648 +<strong>Y<\/strong> \u0641\u0627\u0635\u0644\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0627\u06cc\u0646 \u0645\u062f\u0644 LES \u0628\u0631\u0627\u0633\u0627\u0633 \u06cc\u06a9 \u0645\u0642\u06cc\u0627\u0633 \u0634\u0628\u06a9\u0647 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u063a\u06cc\u0631 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u06cc \u0634\u0628\u06a9\u0647 (Grid Anisotropic) \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0628\u0646\u0627 \u0634\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631 \u0631\u0627\u0628\u0637\u0647 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0628\u06a9\u0647\u060c <strong>h<\/strong>max \u0628\u0632\u0631\u06af\u062a\u0631\u06cc\u0646 \u0637\u0648\u0644 \u0644\u0628\u0647 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0627\u0644\u0645\u0627\u0646 \u0634\u0634 \u0648\u062c\u0647\u06cc \u0645\u06a9\u0639\u0628 \u0645\u0633\u062a\u0637\u06cc\u0644 (\u0628\u0631\u0627\u06cc \u0633\u0627\u06cc\u0631 \u0627\u0646\u0648\u0627\u0639 \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627 \u0646\u06cc\u0632 \u0627\u0632 \u0645\u0641\u0647\u0648\u0645\u06cc \u0645\u0634\u0627\u0628\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f) \u0648 <strong>h<\/strong>wn \u0641\u0627\u0635\u0644\u0647 \u0634\u0628\u06a9\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0641\u0648\u0642 \u0635\u0631\u0641\u0627 \u0628\u0631\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 Ansys \u0651Fluent \u0628\u0647\u06cc\u0646\u0647 \u0633\u0627\u0632\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0627\u0644\u0628\u062a\u0647 \u0631\u0648\u062d \u0645\u062f\u0644 \u0627\u0635\u0644\u06cc \u0634\u0631 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0628\u0627\u0642\u06cc\u0645\u0627\u0646\u062f\u0647 \u0627\u0633\u062a!<\/span><\/p>\n<h5 style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u0645\u0642\u06cc\u0627\u0633 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632<\/strong><\/span><\/h5>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0645\u0632\u06cc\u062a \u0627\u0635\u0644\u06cc \u0645\u062f\u0644 WMLES \u062f\u0631 \u06a9\u0627\u0647\u0634 \u062a\u0639\u062f\u0627\u062f \u0634\u0628\u06a9\u0647 \u0648 \u0627\u0633\u062a\u0642\u0644\u0627\u0644 \u0646\u0633\u0628\u06cc \u0622\u0646 \u0627\u0632 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u062d\u0627\u0644\u062a \u06a9\u0644\u06cc \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0645\u0634\u062e\u0635\u0627\u062a \u0634\u0628\u06a9\u0647 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u062f\u0644 \u06a9\u0644\u0627\u0633\u06cc\u06a9 LES \u0648 \u0645\u062f\u0644 WMLES \u062f\u0631 \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/span><\/p>\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"412\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid.png\" alt=\"\" class=\"wp-image-4515\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-300x129.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-768x330.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-360x155.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642:<\/span><\/p>\n<ul>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\">Ny: \u062a\u0639\u062f\u0627\u062f \u0627\u0644\u0645\u0627\u0646 \u062f\u0631 \u0631\u0627\u0633\u062a\u0627\u06cc \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\">u\u03c4: \u0633\u0631\u0639\u062a \u0627\u0635\u0637\u06a9\u0627\u06a9\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 (Wall Friction Velocity)\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\">\u03bdt: \u0644\u0632\u062c\u062a \u0633\u06cc\u0646\u0645\u0627\u062a\u06cc\u06a9\u06cc\u060c<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\">\u03a4w: \u062a\u0646\u0634 \u0628\u0631\u0634\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u0648<\/span><\/li>\n<li style=\"text-align: right;\"><span style=\"color: #000000;\">h: \u0637\u0648\u0644 \u0645\u0631\u062c\u0639 (h=H\/2 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0646\u0627\u0644 \u0648 H \u0627\u0631\u062a\u0641\u0627\u0639 \u06a9\u0627\u0646\u0627\u0644) \u0648 (h=\u03b4 \u0628\u0631\u0627\u06cc \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u06a9\u0647 \u03b4 \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f) \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647\u200c\u0627\u0646\u062f.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u062a\u0639\u062f\u0627\u062f \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u06a9\u0627\u0646\u0627\u0644 \u067e\u0631\u06cc\u0648\u062f\u06cc\u06a9 (\u062f\u0631 \u062c\u0647\u062a\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648 \u0639\u0631\u0636\u06cc \u062c\u0631\u06cc\u0627\u0646) \u0628\u0627 \u0627\u0628\u0639\u0627\u062f Lx=8h \u062f\u0631 \u062c\u0647\u062a \u0627\u0635\u0644\u06cc \u062c\u0631\u06cc\u0627\u0646\u060c Ly=2h \u062f\u0631 \u062c\u0647\u062a \u0636\u062e\u0627\u0645\u062a \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0648 Lz=3h \u062f\u0631 \u062c\u0647\u062a \u0639\u0631\u0636 \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0645\u062e\u062a\u0644\u0641 \u062f\u0631 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u06a9\u0644\u0627\u0633\u06cc\u06a9 LES \u0648 WMLES \u062f\u0631 \u062c\u062f\u0648\u0644\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/span><\/p>\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"401\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-comparation.png\" alt=\"\" class=\"wp-image-4523\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-comparation.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-comparation-300x125.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-comparation-768x321.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/WMLES-LES-grid-comparation-360x150.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption> \u0645\u0642\u0627\u06cc\u0633\u0647 \u062a\u0639\u062f\u0627\u062f \u0634\u06a9\u0628\u0647\u200c\u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u062f\u0631 \u062f\u0648 \u0645\u062f\u0644 LES \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0648 WMLES.<\/figcaption><\/figure>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0645\u0642\u0627\u06cc\u0633\u0647 \u0646\u062a\u0627\u06cc\u062c \u0645\u0642\u0627\u06cc\u0633\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0628\u0633\u06cc\u0627\u0631 \u0634\u06af\u0641\u062a\u200c\u0627\u0646\u06af\u06cc\u0632 \u0648 \u062f\u0631 \u0639\u06cc\u0646 \u062d\u0627\u0644 \u0627\u0645\u06cc\u062f\u0648\u0627\u0631 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0633\u062a. \u0627\u062e\u062a\u0644\u0627\u0641 \u062a\u0639\u062f\u0627\u062f \u0634\u0628\u06a9\u0647 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0632\u0645\u0627\u0646 CPU \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0628\u0627 \u0646\u0633\u0628\u062a \u062a\u0648\u0627\u0646\u200c\u0647\u0627\u06cc 2\u0648 3 \u0646\u0633\u0628\u062a \u0628\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 ( \u0628\u0647 \u0627\u0639\u062f\u0627\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u062f\u0647 \u0647\u0632\u0627\u0631 \u0648 \u0635\u062f \u0647\u0632\u0627\u0631 \u062a\u0648\u062c\u0647 \u0634\u0648\u062f) \u06a9\u0627\u0645\u0644\u0627 \u0645\u0634\u0647\u0648\u062f \u0627\u0633\u062a. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u06cc\u0646\u06af\u0648\u0646\u0647 \u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc \u0646\u0645\u0648\u062f \u06a9\u0647 \u062a\u0639\u062f\u0627\u062f \u0634\u0628\u06a9\u0647 \u062f\u0631 \u0631\u0648\u0634 WMLES \u0645\u0633\u062a\u0642\u0644 \u0627\u0632 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0648 \u0628\u0633\u06cc\u0627\u0631 \u06a9\u0645\u062a\u0631 \u0627\u0632 \u0631\u0648\u0634 LES \u06a9\u0644\u0627\u0633\u06cc\u06a9 \u0627\u0633\u062a.&nbsp;<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644 \u0627\u06cc\u0646 \u062a\u0639\u062f\u0627\u062f \u0634\u0628\u06a9\u0647 \u0647\u0627\u06cc \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0647\u0645\u0686\u0646\u0627\u0646 \u0628\u0637\u0648\u0631 \u0686\u0634\u0645\u06af\u06cc\u0631\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS \u0628\u0648\u062f\u0647 \u0648 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644 \u06a9\u0645 \u0646\u06cc\u0633\u062a. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0628\u0631\u0627\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u062f\u0647 \u0627\u0632 WMLES \u0644\u0627\u0632\u0645\u0633\u062a \u0628\u0631\u0627\u06cc \u067e\u0648\u0634\u0634 \u062d\u062c\u0645 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc (\u03b4y, \u03b4x \u0648 \u03b4z) \u0637\u0628\u0642 \u0631\u0627\u0628\u0637\u0647 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u062d\u062f\u0627\u0642\u0644 \u0628\u0647 (10*(30-40)*20) \u0627\u0644\u0645\u0627\u0646 \u062f\u0631 \u062c\u0647\u062a\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc\u060c \u0639\u0645\u0648\u062f \u0648 \u0639\u0631\u0636\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a \u062f\u0631 \u062d\u0627\u0644\u06cc\u06a9\u0647 \u062f\u0631 \u0631\u0648\u0634 RANS \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0628\u0647 (1*(30-40)*1) \u0627\u0644\u0645\u0627\u0646 \u06a9\u0627\u0647\u0634 \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0639\u0644\u0627\u0648\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634 RANS \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u067e\u0627\u06cc\u0627 \u062d\u0644 \u06a9\u0631\u062f \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc\u06a9\u0647 \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u062f\u0631 \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634 WMLES \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u0628\u0635\u0648\u0631\u062a \u0646\u0627\u067e\u0627\u06cc\u0627 \u0648 \u0628\u0627 CFL~0.3 \u0628\u0631\u0627\u06cc \u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u062d\u0644 \u0634\u0648\u062f.&nbsp;<\/span><\/p>\n<h5 style=\"text-align: right;\"><span style=\"color: #000000;\"><strong>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 \u062c\u0628\u0631\u06cc WMLES S-Omega<\/strong><\/span><\/h5>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06cc\u06a9\u06cc \u0627\u0632 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0631\u0648\u0634 WMLES \u0622\u0646\u0633\u062a \u06a9\u0647 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0642\u0627\u062f\u0631 \u0628\u0647 \u062a\u0648\u0644\u06cc\u062f \u0644\u0632\u062c\u062a \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0627\u06cc \u0635\u0641\u0631 \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u062a\u0646\u0634 \u0628\u0631\u0634\u06cc \u062b\u0627\u0628\u062a \u0646\u06cc\u0633\u062a. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062e\u0627\u0637\u0631 \u0645\u0648\u0644 \u0645\u0630\u06a9\u0648\u0631 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0648 \u0644\u062d\u0627\u0638 \u0646\u0645\u0648\u062f\u0646 \u0627\u062b\u0631\u0627\u062a \u062c\u0631\u06cc\u0627\u0646 \u06af\u0630\u0631\u0627 \u0631\u0627 \u0646\u062f\u0627\u0631\u062f \u0648 \u0639\u0645\u0648\u0645\u0627 \u0642\u0627\u062f\u0631 \u0628\u0647 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0644\u0632\u062c\u062a\u200c\u0647\u0627\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u062f\u0631 \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0628\u0631\u0634\u06cc \u062c\u062f\u0627 \u0634\u0648\u0646\u062f\u0647 \u0634\u0628\u06cc\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0639\u0628\u0648\u0631\u06cc \u0627\u0632 \u067e\u0634\u062a \u067e\u0644\u0647 (Back-Step Flow) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0627\u0644\u0628\u062a\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0628\u062e\u0634 LES \u062f\u0631 \u0645\u062f\u0644 WMLES \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0641\u0627\u0648\u062a \u0642\u062f\u0631\u0645\u0637\u0644\u0642 (S-\u03a9) \u0628\u0647 \u062c\u0627\u06cc S \u06a9\u0647 S \u0646\u0631\u062e \u06a9\u0631\u0646\u0634 \u0648 \u03a9 \u0627\u0646\u062f\u0627\u0632\u0647 \u0648\u0631\u062a\u06cc\u0633\u06cc\u062a\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u062a\u0648\u0627\u0646\u0627\u06cc\u06cc \u0645\u062f\u0644 WMLES \u0631\u0627 \u062f\u0631 \u0631\u0641\u0639 \u062d\u0644 \u0627\u06cc\u0646 \u0645\u0634\u06a9\u0644 \u0628\u0647\u0628\u0648\u062f \u0628\u062e\u0634\u06cc\u062f. \u0627\u06cc\u0646 \u062a\u0631\u0641\u0646\u062f \u0628\u0627 \u0639\u0646\u0648\u0627\u0646 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 WMLES S-Omega \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<p><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #ff6600;\"><strong>\u0645\u062f\u0644 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc (Dynamic Kinetic Energy Subgrid-Scale)<\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0627\u0633\u0645\u0627\u06af\u0648\u0631\u06cc\u0646\u0633\u06a9\u06cc-\u0644\u0627\u06cc\u0644\u06cc\u060c \u0627\u0633\u0627\u0633\u0627 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u062c\u0628\u0631\u06cc \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u062a\u0646\u0634\u200c\u0647\u0627\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0628\u0627\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0628\u0635\u0648\u0631\u062a \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0641\u0631\u0636 \u0627\u0633\u0627\u0633\u06cc \u062f\u0631 \u0627\u06cc\u0646 \u0645\u062f\u0644\u200c\u0647\u0627\u060c \u062a\u0639\u0627\u062f\u0644 \u0645\u062d\u0644\u06cc (Local Equilibrium) \u0628\u06cc\u0646 \u0627\u0646\u0631\u0698\u06cc \u0645\u0646\u062a\u0642\u0644 \u0634\u062f\u0647 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0645\u0642\u06cc\u0627\u0633 \u0641\u06cc\u0644\u062a\u0631 \u0634\u0628\u06a9\u0647 \u0648 \u0627\u062a\u0644\u0627\u0641 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0634\u0628\u06a9\u0647\u200c\u06cc \u06a9\u0648\u0686\u06a9 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0622\u0634\u0641\u062a\u06af\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u062f\u0642\u06cc\u0642\u200c\u062a\u0631 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u0628\u0647\u062a\u0631 \u0645\u062f\u0644 \u0634\u0648\u062f. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 Fluent \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc (Dynamic Kinetic Energy Subgrid-Scale) \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc \u06a9\u06cc\u0645 (Kim) \u0648 \u0645\u0646\u0648\u0646 (Menon) \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 \u0645\u0630\u06a9\u0648\u0631 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"254\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Kinetic-energy-LES.png\" alt=\"\" class=\"wp-image-4542\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Kinetic-energy-LES.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Kinetic-energy-LES-300x79.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Kinetic-energy-LES-768x203.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Kinetic-energy-LES-360x95.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0645\u062f\u0644 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0645\u0642\u06cc\u0627\u0633 \u0632\u06cc\u0631\u0634\u0628\u06a9\u0647 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc<\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0631\u0648\u0627\u0628\u0637 \u0641\u0648\u0642 <strong>\u0394<\/strong>f \u0627\u0646\u062f\u0627\u0632\u0647 \u0641\u06cc\u0644\u062a\u0631 (Filter-Size) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062b\u0627\u0628\u062a\u200c\u0647\u0627\u06cc <strong>C<\/strong>k \u0648 <strong>C<\/strong>\u03b5 \u0628\u0635\u0648\u0631\u062a \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u0648 <strong>\u03c3<\/strong>k \u0646\u06cc\u0632 \u0628\u0635\u0648\u0631\u062a \u0633\u0641\u062a \u0648 \u0633\u062e\u062a\u06cc 1 \u062f\u0631\u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<p><\/p>\n<h3 style=\"text-align: right;\"><span style=\"color: #ff0000;\"><strong>\u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0648\u0631\u0648\u062f\u06cc \u0628\u0631\u0627\u06cc \u0645\u062f\u0644\u200c\u0647\u0627\u06cc LES<\/strong><\/span><\/h3>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06cc\u06a9\u06cc&nbsp; \u0627\u0632 \u0645\u0634\u062e\u0635\u0647 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc LES \u0622\u0646\u0633\u062a \u06a9\u0647 \u0630\u0627\u062a\u0627 \u0628\u0627\u06cc\u062f \u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0647 \u0632\u0645\u0627\u0646 \u062d\u0644 \u0634\u0648\u0646\u062f. \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648 \u062f\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0648\u0631\u0648\u062f\u06cc \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646\u200c \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0628\u0627 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0633\u0631\u0639\u062a \u0647\u0645\u0631\u0627\u0647 \u0628\u0627\u0634\u062f \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0633\u0637\u062d \u06cc\u0627 \u0634\u062f\u062a \u0622\u0634\u0641\u062a\u06af\u06cc \u062f\u0631 \u0645\u0631\u0632\u200c\u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0646\u0627\u0686\u06cc\u0632 \u0628\u0648\u062f\u0647 \u06cc\u0627 \u0627\u06cc\u0646\u06a9\u0647 \u0646\u0642\u0634 \u0639\u0645\u062f\u0647\u200c\u0627\u06cc \u062f\u0631 \u062d\u0644 \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0644\u062d\u0638\u0647\u200c\u0627\u06cc \u0647\u0645\u0627\u0646\u0646\u062f \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0627\u0644\u06af\u0648\u0631\u06cc\u062a\u0645\u200c\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u0628\u0631\u0627\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0633\u0631\u0639\u062a \u062f\u0631 \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u062f\u0631 \u0627\u06cc\u0646 \u0642\u0633\u0645\u062a \u0628\u0647 \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0627\u0644\u06af\u0648\u0631\u06cc\u062a\u0645\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u067e\u0631\u062f\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.&nbsp; \u0627\u0644\u0628\u062a\u0647 \u062f\u0631 \u0647\u0645\u06cc\u0646 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 \u0627\u06af\u0631 \u06af\u0632\u06cc\u0646\u0647 No Perturbation \u0641\u0639\u0627\u0644 \u0634\u0648\u062f \u0622\u0646\u06af\u0627\u0647 \u0627\u0632 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u062a\u0635\u0627\u062f\u0641\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0633\u0631\u0639\u062a \u0648\u0631\u0648\u062f\u06cc \u0635\u0631\u0641 \u0646\u0638\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f.&nbsp;<\/span><\/p>\n<p><\/p>\n<h4 style=\"text-align: right;\"><strong><span style=\"color: #ff6600;\">\u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 (Vortex Method: VM)<\/span><\/strong><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0648\u0631\u0648\u062f\u06cc \u0648\u0627\u0628\u0633\u062a\u0647 \u0628\u0647 \u0632\u0645\u0627\u0646\u060c \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u062f\u0648 \u0628\u0639\u062f\u06cc \u062a\u0635\u0627\u062f\u0641\u06cc \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646 \u062a\u0631\u0641\u0646\u062f\u060c \u06cc\u06a9 \u0646\u0648\u0639 \u0645\u06cc\u062f\u0627\u0646 \u0646\u0648\u0633\u0627\u0646 \u062a\u0635\u0627\u062f\u0641\u06cc (\u0645\u06cc\u062f\u0627\u0646 \u0646\u0648\u0633\u0627\u0646 \u062f\u0648\u0628\u0639\u062f\u06cc \u062f\u0631 \u0635\u0641\u062d\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646) \u0628\u0647 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0633\u0631\u0639\u062a \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0648\u0631\u0648\u062f\u06cc \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u0628\u0631\u0627\u0633\u0627\u0633 \u0641\u0631\u0645 \u0644\u0627\u06af\u0631\u0627\u0646\u0698\u06cc \u0645\u0639\u0627\u062f\u0644\u0647 \u062d\u0627\u0644\u062a \u062f\u0648 \u0628\u0639\u062f\u06cc \u0648\u0631\u062a\u06cc\u0633\u06cc\u062a\u0647 \u0648 \u0642\u0627\u0646\u0648\u0646 \u0628\u06cc\u0648\u0633\u0627\u0648\u0627\u0631\u062a (Biot-Savart) \u0628\u0646\u0627 \u0646\u0647\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646\u06a9\u0627\u0631 \u0627\u0632 \u06af\u0633\u0633\u062a\u0647 \u0633\u0627\u0632\u06cc \u0630\u0631\u0627\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u06a9\u0647 \u0630\u0631\u0627\u062a \u06cc\u0627 \u0646\u0642\u0627\u0637 \u0648\u0631\u062a\u06a9\u0633 \u0628\u0635\u0648\u0631\u062a \u062a\u0635\u0627\u062f\u0641\u06cc \u062c\u0627\u0628\u062c\u0627 \u0634\u062f\u0647 \u0648 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0645\u06cc\u062f\u0627\u0646 \u0648\u0631\u062a\u06cc\u0633\u06cc\u062a\u0647 \u0631\u0627 \u062a\u0623\u0645\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0627\u06af\u0631 N \u062a\u0639\u062f\u0627\u062f \u0646\u0642\u0627\u0637 \u0648\u0631\u062a\u06a9\u0633 \u0648 A \u0633\u0637\u062d \u0645\u0642\u0637\u0639 \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0628\u0627\u0634\u062f\u060c \u0645\u0642\u062f\u0627\u0631 \u0648\u0631\u062a\u06cc\u0633\u06cc\u062a\u0647 \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u0628\u0631\u0627\u0633\u0627\u0633 \u0630\u0631\u0647 i \u0628\u0635\u0648\u0631\u062a \u0393i \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0647 \u0648 \u06cc\u06a9 \u062c\u0647\u062a \u0648\u06cc\u0698\u0647 \u0645\u0641\u0631\u0648\u0636 \u03b7 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f:<\/span><\/p>\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"391\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Vortex-Method-LES.png\" alt=\"\" class=\"wp-image-4558\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Vortex-Method-LES.png 960w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Vortex-Method-LES-300x122.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Vortex-Method-LES-768x313.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/Vortex-Method-LES-360x147.png 360w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption>\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633.<\/figcaption><\/figure><\/div>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06a9\u0647 K\u060c \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc\u060c \u03c3 \u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u0630\u0631\u0647 \u0648\u0631\u062a\u06a9\u0633 \u0648 \u0628\u0631\u062f\u0627\u0631 Z \u0646\u06cc\u0632 \u0628\u0631\u062f\u0627\u0631 \u06cc\u06a9\u0647 \u062f\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u0633\u062a. \u0627\u0635\u0627\u0644\u062a\u0627 \u0627\u0646\u062f\u0627\u0632\u0647 \u0648\u0631\u062a\u06a9\u0633 \u0628\u0648\u0633\u06cc\u0644\u0647 \u0645\u0642\u062f\u0627\u0631 \u0645\u062a\u0639\u0627\u0648\u0631\u0641\u06cc \u0627\u0632 k \u062b\u0627\u0628\u062a \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0645\u062a\u062f \u0648\u0631\u062a\u06a9\u0633 \u06a9\u0627\u0631\u0628\u0631\u062f \u0639\u0645\u0648\u0645\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u06cc\u06a9 \u0627\u0646\u062f\u0627\u0632\u0647 \u0645\u0634\u062e\u0635 \u0628\u0631\u0627\u06cc \u0648\u0631\u062a\u06a9\u0633 \u0645\u062d\u0644\u06cc \u062f\u0631 \u0628\u06cc\u0646 \u062a\u0626\u0648\u0631\u06cc \u0637\u0648\u0644 \u0627\u062e\u062a\u0644\u0627\u0637 \u0622\u0634\u0641\u062a\u0647 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f. \u03c3 \u0627\u0632 \u06cc\u06a9 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0645\u0639\u0644\u0648\u0645 \u0627\u0632 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0648 \u0646\u0631\u062e \u0627\u062a\u0644\u0627\u0641 \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u06a9\u0647 \u062f\u0631 \u0631\u0627\u0628\u0637\u0647 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0622\u0646 c=0.16 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0631\u0627\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0648\u0631\u062a\u06a9\u0633 \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u062f\u0631 \u0627\u0646\u062f\u0627\u0632\u0647 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627\u0634\u062f\u060c \u062d\u062f\u0627\u0642\u0644 \u0645\u0642\u062f\u0627\u0631 \u03c3 \u062f\u0631 \u0631\u0627\u0628\u0637\u0647 \u0641\u0648\u0642 \u0628\u0648\u0633\u06cc\u0644\u0647 \u0627\u0628\u0639\u0627\u062f \u0634\u0628\u06a9\u0647 \u0645\u062d\u0644\u06cc \u0645\u062d\u062f\u0648\u062f \u0645\u06cc\u200c\u0634\u0648\u062f. <\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0632 \u0637\u0631\u0641\u06cc \u062c\u0647\u062a \u06af\u0631\u062f\u0634 (Circulation) \u0647\u0631 \u0648\u0631\u062a\u06a9\u0633 \u0646\u06cc\u0632 \u0628\u0637\u0648\u0631 \u062a\u0635\u0627\u062f\u0641\u06cc \u062f\u0631 \u0647\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0632\u0645\u0627\u0646\u06cc\u060c \u03c4\u060c \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u062f\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f \u06a9\u0644\u06cc \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633\u060c \u0627\u06cc\u0646 \u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u0645\u0628\u06cc\u0646 \u0632\u0645\u0627\u0646 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0648\u0631\u062a\u06a9\u0633 \u062f\u0648\u0628\u0639\u062f\u06cc \u062c\u0627\u0628\u062c\u0627 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0633\u0631\u0639\u062a \u062c\u0631\u06cc\u0627\u0646 \u063a\u0627\u0644\u0628 \u062f\u0631 \u0645\u0631\u0632 \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u062d\u0631\u06a9\u062a \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0627\u0645\u062a\u062f\u0627\u062f n\u0627\u0645 \u0632\u0645\u0627\u0646 \u0645\u0634\u062e\u0635\u0647\u200c\u0647\u0627\u06cc \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0627\u0646\u062f\u0627\u0632\u0647 \u062f\u0648\u0628\u0639\u062f\u06cc \u03c3m \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062c\u0627\u0626\u06cc\u06a9\u0647 n \u0628\u0631\u0627\u0628\u0631 100 \u0648 \u0628\u0631\u0627\u0633\u0627\u0633 \u062a\u0633\u062a\u200c\u0647\u0627\u06cc \u0639\u062f\u062f\u06cc \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u062a\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0633\u0631\u0639\u062a \u062f\u0631 \u0635\u0641\u062d\u0647 \u0639\u0645\u0648\u062f \u0628\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0644\u062d\u0627\u0638 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f. \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Ansys Fluent \u0627\u0632 \u06cc\u06a9 \u0645\u062f\u0644 \u0633\u06cc\u0646\u0645\u0627\u062a\u06cc\u06a9 \u062e\u0637\u06cc \u0633\u0627\u062f\u0647 \u0634\u062f\u0647 Linear Kinematic Model: LKM \u0628\u0631\u0627\u06cc \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0647\u0645\u0631\u0627\u0633\u062a\u0627 \u0628\u0627 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0648\u0627\u0642\u0639 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0627\u0632 \u06cc\u06a9 \u0645\u062f\u0644 \u062e\u0637\u06cc \u06a9\u0647 \u062a\u0623\u062b\u06cc\u0631 \u0648\u0631\u062a\u06a9\u0633 \u062f\u0648\u0628\u0639\u062f\u06cc \u062f\u0631 \u0645\u06cc\u062f\u0627\u0646 \u0633\u0631\u0639\u062a \u0645\u062a\u0648\u0633\u0637 \u0647\u0645\u0631\u0627\u0633\u062a\u0627 \u0628\u0627 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0645\u0634\u062a\u0642 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06af\u0631 \u0633\u0631\u0639\u062a \u0645\u062a\u0648\u0633\u0637 \u062f\u0631 \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 U \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0627\u0633\u06a9\u0627\u0644\u0631 \u063a\u06cc\u0631\u0641\u0639\u0627\u0644 (Passive) \u0628\u0627\u0634\u062f\u060c \u0646\u0648\u0633\u0627\u0646\u0627\u062a &#8216;u \u0627\u0632 \u0627\u0646\u062a\u0642\u0627\u0644 U \u0628\u0648\u0633\u06cc\u0644\u0647 \u0645\u06cc\u062f\u0627\u0646 \u0633\u0631\u0639\u062a \u0646\u0648\u0633\u0627\u0646\u06cc \u0635\u0641\u062d\u0647 &#8216;v \u0628\u0635\u0648\u0631\u062a \u0631\u0627\u0628\u0637\u0647 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0645\u062f\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f. \u06a9\u0647 \u0628\u0631\u062f\u0627\u0631 g \u0628\u0631\u062f\u0627\u0631 \u06cc\u06a9\u0647 \u0628\u0627 \u06af\u0631\u062f\u0627\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0645\u062a\u0648\u0633\u0637 \u0628\u0631\u062f\u0627\u0631 U\u2207 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. <\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u06af\u0631 \u06af\u0631\u0627\u062f\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0645\u062a\u0648\u0633\u0637 \u0635\u0641\u0631 \u0628\u0627\u0634\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u0632 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u062a\u0635\u0627\u062f\u0641\u06cc \u0628\u062c\u0627\u06cc \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f. \u0627\u0632 \u0622\u0646\u062c\u0627\u0626\u06cc\u06a9\u0647 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0628\u0637\u0648\u0631 \u0645\u0633\u0627\u0648\u06cc \u062f\u0631 \u0627\u0645\u062a\u062f\u0627\u062f \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u062a\u0648\u0632\u06cc\u0639 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f\u060c \u062a\u0646\u0647\u0627&nbsp; \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0627\u0646\u0631\u0698\u06cc \u062c\u0646\u0628\u0634\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u062f\u0631\u0633\u062a \u0628\u0631\u0622\u0648\u0631\u062f \u0634\u0648\u062f. \u062f\u0631 \u067e\u0627\u06cc\u06cc\u0646 \u062f\u0633\u062a \u062f\u0648\u0631\u062a\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062a\u0648\u0632\u06cc\u0639 \u0635\u062d\u06cc\u062d \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0628\u0631\u0627\u0633\u0627\u0633 \u0631\u0648\u0627\u0628\u0637 \u0645\u0646\u0627\u0633\u0628\u06cc \u0628\u062f\u0633\u062a \u0645\u06cc\u200c\u0622\u06cc\u062f\u0648 \u0628\u0647 \u0647\u0631\u0635\u0648\u0631\u062a \u0627\u06af\u0631 \u062a\u0648\u0632\u06cc\u0639 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u062a\u0631\u0645 \u0645\u0639\u0644\u0648\u0645 \u06cc\u0627 \u0642\u0627\u0628\u0644 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0628\u0627\u0634\u062f\u060c \u06cc\u06a9 \u062a\u06a9\u0646\u06cc\u06a9 \u0645\u0642\u06cc\u0627\u0633 \u0645\u062c\u062f\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0631\u0627\u06cc \u0645\u06cc\u062f\u0627\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0645\u0635\u0646\u0648\u0639\u06cc (Synthetic) \u0628\u0647 \u0645\u0646\u0638\u0648\u0631 \u0648\u0627\u0642\u0639\u06cc\u062a \u062f\u0627\u062f\u0646 \u0628\u0647 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0646\u0631\u0645\u0627\u0644 &lt;uu&gt;\u060c &lt;vv&gt; \u0648 &lt;ww&gt; \u062f\u0631 \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0628\u06a9\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f.\u0628\u0627 \u0641\u0631\u0622\u06cc\u0646\u062f \u0645\u0642\u06cc\u0627\u0633 \u0645\u062c\u062f\u062f \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0633\u0631\u0639\u062a \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0628\u06cc\u0627\u0646 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-4569 aligncenter\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2019\/09\/velocity-fluctuation.png\" alt=\"\" width=\"150\" height=\"85\"><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0646\u06a9\u062a\u0647 \u0645\u0647\u0645 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0627\u06cc\u0646\u06a9\u0647 \u062a\u0626\u0648\u0631\u06cc \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u0628\u0631\u0627\u0633\u0627\u0633 \u062a\u0635\u062d\u06cc\u062d \u0645\u06cc\u062f\u0627\u0646 \u0633\u0631\u0639\u062a \u0639\u0645\u0648\u062f \u0628\u0631 \u0631\u0627\u0633\u062a\u0627\u06cc \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f\u060c \u0644\u0630\u0627 \u0636\u0631\u0648\u0631\u06cc\u0633\u062a \u0635\u0641\u062d\u0647 \u0645\u0631\u0632\u06cc \u0648\u0631\u0648\u062f\u06cc \u0639\u0645\u0648\u062f (\u06cc\u0627 \u062a\u0627 \u062d\u062f \u0627\u0645\u06a9\u0627\u0646 \u0639\u0645\u0648\u062f) \u0628\u0631 \u0633\u0631\u0639\u062a \u062c\u0647\u062a \u062c\u0631\u06cc\u0627\u0646 \u0628\u0627\u0634\u062f. \u0645\u0634\u06a9\u0644 \u0632\u0645\u0627\u0646\u06cc \u062d\u0627\u062f \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0633\u0631\u0639\u062a \u062c\u0627\u0628\u062c\u0627\u06cc\u06cc \u0627\u0632 \u0645\u0631\u062a\u0628\u0647 \u06cc\u0627 \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0627\u0632 k^0.5 \u0645\u06cc\u200c\u0634\u0648\u062f \u0686\u0631\u0627\u06a9\u0647 \u062e\u0631\u0648\u062c\u06cc \u0645\u0648\u0636\u0639\u06cc (Local)\u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u062f\u0631 \u067e\u06cc \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a. \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0628\u0627\u06cc\u062f \u0628\u0631\u0627\u06cc Tu~1 \u06cc\u0627 \u06a9\u0648\u0686\u06a9\u062a\u0631 \u0628\u06a9\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u0628\u0631\u0627\u06cc \u062a\u0645\u0627\u0645\u06cc \u0645\u0631\u0632\u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u062d\u062a\u06cc \u062f\u0631 \u0646\u0648\u0627\u062d\u06cc \u06a9\u0647 \u0633\u0637\u062d \u0622\u0634\u0641\u062a\u06af\u06cc \u0648\u0631\u0648\u062f\u06cc \u06a9\u0645 \u0628\u0627\u0634\u062f (\u062c\u0631\u06cc\u0627\u0646 \u0622\u0632\u0627\u062f) \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0633\u062a. \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0631\u0627\u0646\u062f\u0645\u0627\u0646 \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u062f\u0627\u0645\u0646\u0647 VM \u0631\u0627 \u0628\u0647 \u0646\u0648\u0627\u062d\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u062f\u0631 \u0622\u0646 \u0622\u0634\u0641\u062a\u06af\u06cc \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631 \u062a\u0648\u0644\u06cc\u062f \u06a9\u0631\u062f \u0645\u062d\u062f\u0648\u062f \u0646\u0645\u0648\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0641\u0631\u0636 \u06a9\u0646\u06cc\u062f \u06cc\u06a9 \u0644\u0627\u06cc\u0647 \u0627\u062e\u062a\u0644\u0627\u0637 \u0646\u0627\u0632\u06a9 \u0627\u0632 \u0645\u06cc\u0627\u0646 \u06cc\u06a9 \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0628\u0632\u0631\u06af\u062a\u0631 \u0648\u0627\u0631\u062f \u0645\u06cc\u200c\u0634\u0648\u062f \u062f\u0631 \u0627\u06cc\u0646 \u062d\u0627\u0644\u062a \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0628\u0647 \u0633\u0647 \u0646\u0627\u062d\u06cc\u0647 \u062a\u0642\u0633\u06cc\u0645 \u0634\u0648\u062f. \u06cc\u06a9\u06cc \u0632\u06cc\u0631 \u0644\u0627\u06cc\u0647 \u0627\u062e\u062a\u0644\u0627\u0637 \u0628\u0627 \u0633\u0631\u0639\u062a \u0648\u0631\u0648\u062f\u06cc \u062b\u0627\u0628\u062a\u060c \u062f\u0648\u0645\u06cc \u0628\u0631\u0627\u06cc \u0644\u0627\u06cc\u0647 \u0627\u062e\u062a\u0644\u0627\u0637 \u0648\u0631\u0648\u062f\u06cc \u0628\u0627 \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 (VM) \u0648 \u0633\u0648\u0645\u06cc \u0628\u0627\u0644\u0627\u06cc \u0646\u0627\u062d\u06cc\u0647 \u0627\u062e\u062a\u0644\u0627\u0637 \u0648 \u0628\u0627 \u0633\u0631\u0639\u062a \u0648\u0631\u0648\u062f\u06cc \u062b\u0627\u0628\u062a. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0648\u0631\u062a\u06a9\u0633\u200c\u0647\u0627 \u062f\u0631 \u0646\u0627\u062d\u06cc\u0647 \u062f\u0644\u062e\u0648\u0627\u0647 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631 \u062a\u0639\u062f\u0627\u062f \u0628\u0633\u06cc\u0627\u0631 \u0632\u06cc\u0627\u062f\u06cc \u0648\u0631\u062a\u06a9\u0633 \u0628\u0627\u06cc\u062f \u062a\u0648\u0644\u06cc\u062f \u0634\u0648\u062f \u062a\u0627 \u0645\u0637\u0645\u0626\u0646 \u0634\u062f \u06a9\u0647 \u062a\u0639\u062f\u0627\u062f \u06a9\u0627\u0641\u06cc \u0627\u0632 \u0622\u0646\u200c\u0647\u0627 \u062f\u0631\u0646\u0627\u062d\u06cc\u0647 \u0627\u062e\u062a\u0644\u0627\u0637 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u0646\u062f.<\/span><\/p>\n<h4 style=\"text-align: right;\"><strong><span style=\"color: #ff6600;\">\u0631\u0648\u0634 \u0633\u0646\u062a\u0632\u0627\u06cc\u0632\u0631 \u0637\u06cc\u0641\u06cc (Spectral Synthesizer)<\/span><\/strong><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u0634 \u0633\u0646\u062a\u0632\u0627\u06cc\u0632\u0631 \u0637\u06cc\u0641\u06cc \u0627\u0632 \u06cc\u06a9 \u0631\u0648\u0634 \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646 \u0628\u0631\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u0633\u0627\u0633 \u062a\u0648\u0644\u06cc\u062f \u062c\u0631\u06cc\u0627\u0646 \u062a\u0635\u0627\u062f\u0641\u06cc \u06a9\u0647 \u062f\u0631 \u0627\u0635\u0644 \u062a\u0648\u0633\u0637 \u06a9\u0627\u0631\u06cc\u0686\u0646\u0627\u0646 (Karichnan) \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0634\u062f\u0647\u060c \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u0648 \u062a\u0648\u0633\u0637 \u0627\u0633\u0645\u06cc\u0631\u0646\u0648\u0641 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 (Smirnov et al) \u0628\u0647\u0628\u0648\u062f \u06cc\u0627\u0641\u062a\u0647 \u0627\u0633\u062a. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u0645\u0624\u0644\u0641\u0647\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0646\u0648\u0633\u0627\u0646\u06cc \u0628\u0631\u0627\u0633\u0627\u0633 \u0633\u0646\u062a\u0632\u0627\u06cc\u0632\u06cc\u0646\u06af \u06cc\u0627 \u062a\u0631\u06a9\u06cc\u0628 \u06cc\u06a9 \u0645\u06cc\u062f\u0627\u0646 \u0628\u0631\u062f\u0627\u0631 \u0633\u0631\u0639\u062a \u0648\u0627\u06af\u0631\u0627\u06cc\u06cc \u0622\u0632\u0627\u062f (Divergence-Free) \u0627\u0632 \u0645\u062c\u0645\u0648\u0639 \u0647\u0627\u0631\u0645\u0648\u0646\u06cc \u0641\u0648\u0631\u06cc\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u062a\u0639\u062f\u0627\u062f \u0627\u06cc\u0646 \u0647\u0627\u0631\u0645\u0648\u0646\u06cc\u06a9\u200c\u0647\u0627 \u062b\u0627\u0628\u062a \u0648 \u0628\u0631\u0627\u0628\u0631 100 \u0627\u0633\u062a.<\/span><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #ff6600;\"><strong>\u0646\u06a9\u0627\u062a \u0645\u0647\u0645<\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0647\u0631 \u062f\u0648 \u0631\u0648\u0634 \u0648\u0631\u062a\u06a9\u0633 \u0648 \u0633\u0646\u062a\u0632\u0627\u06cc\u0632\u0631 \u0637\u06cc\u0641\u06cc \u0628\u0631\u0627\u06cc \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u0633\u0631\u0639\u062a \u0648 \u0641\u0634\u0627\u0631 \u0648\u0631\u0648\u062f\u06cc \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0642\u0627\u0628\u0644 \u062f\u0633\u062a\u0631\u0633 \u0647\u0633\u062a\u0646\u062f. \u0628\u0631\u0627\u06cc \u0633\u0631\u0639\u062a \u0648\u0631\u0648\u062f\u06cc \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0628\u0647 \u0633\u0631\u0639\u062a \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0628\u0631\u0627\u06cc \u0645\u0631\u0632\u200c\u0647\u0627\u06cc \u0641\u0634\u0627\u0631 \u0648\u0631\u0648\u062f\u06cc\u060c \u0646\u06cc\u0631\u0648\u200c\u0647\u0627\u06cc \u062d\u062c\u0645\u06cc \u0645\u062c\u0627\u0632\u06cc \u0628\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0645\u0645\u0646\u062a\u0645 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u062a\u0627 \u0646\u0648\u0633\u0627\u0646\u0627\u062a \u0622\u0634\u0641\u062a\u0647 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u06cc\u062f\u0627\u0646\u200c\u0647\u0627\u06cc \u0633\u0631\u0639\u062a \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u06a9\u0646\u0646\u062f. \u0627\u06cc\u0646 \u0646\u06cc\u0631\u0648\u0647\u0627\u06cc \u062d\u062c\u0645\u06cc \u062a\u0646\u0647\u0627 \u062f\u0631 \u0627\u0648\u0644\u06cc\u0646 \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627\u06cc LES \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u0645\u0631\u0632 \u0648\u0631\u0648\u062f\u06cc \u0644\u062d\u0627\u0638 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.&nbsp;<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0631 \u062f\u0648 \u0631\u0648\u0634 \u0641\u0648\u0642 \u0628\u0631\u0627\u06cc \u0645\u062f\u0644\u200c\u0647\u0627\u06cc SBES\u060c SDES\u060c DES \u0648 SAS \u0646\u06cc\u0632 \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u0647\u0633\u062a\u0646\u062f. \u0627\u0644\u0628\u062a\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0646\u0627\u067e\u0627\u06cc\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062f\u0627\u062e\u0644 \u062f\u0627\u0645\u0646\u0647 \u0628\u0633\u062a\u0647 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0648 \u0627\u0628\u0639\u0627\u062f \u0634\u0628\u06a9\u0647 \u067e\u0627\u06cc\u062f\u0627\u0631 \u0634\u0648\u062f \u0628\u062e\u0635\u0648\u0635 \u0647\u0646\u06af\u0627\u0645\u06cc\u06a9\u0647 \u0627\u0632 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc SAS \u06cc\u0627 DES \u0628\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0645\u062d\u062f\u0648\u062f \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u06a9\u0644\u0627\u0645 \u0622\u062e\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0647\u0631 \u062f\u0648 \u0631\u0648\u0634 \u0628\u0647 \u0634\u0631\u0627\u06cc\u0637 \u0648\u0631\u0648\u062f\u06cc \u0645\u0646\u0627\u0633\u0628\u06cc \u0628\u0631\u0627\u06cc k \u0648 \u03b5 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u0648\u0646\u062f. \u0644\u0627\u0632\u0645 \u0628\u0647 \u0630\u06a9\u0631 \u0627\u0633\u062a \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0622\u0634\u0641\u062a\u0647 \u063a\u06cc\u0631 \u0648\u0627\u0642\u0639\u06cc (\u0627\u0632 \u062c\u0645\u0644\u0647 \u067e\u0631\u0648\u0641\u0627\u06cc\u0644 \u0635\u0627\u0641 \u0648 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a) \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0645\u0648\u062c\u0628 \u0627\u06cc\u062c\u0627\u062f \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u0647 \u063a\u06cc\u0631 \u0648\u0627\u0642\u0639\u06cc \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f.&nbsp;<\/span><\/p>\n\n\n<p class=\"has-text-color has-text-align-right has-vivid-cyan-blue-color wp-block-paragraph\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/\">\u0628\u0627\u0632\u06af\u0634\u062a<\/a><\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-background has-text-align-right has-vivid-red-color has-cyan-bluish-gray-background-color wp-block-paragraph\"><strong>\u0645\u0637\u0627\u0644\u0628 \u0645\u0631\u062a\u0628\u0637<\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-text-align-right has-vivid-cyan-blue-color wp-block-paragraph\"><a href=\"https:\/\/cfd-mrk.ir\/index.php\/about-cfd\/cfd-application\/flow-regimes-simulation\/inviscid-laminar-and-turbulent-flow\/\"><strong>\u062d\u0644 \u0645\u06cc\u062f\u0627\u0646\u200c\u0647\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u063a\u06cc\u0631 \u0644\u0632\u062c\u060c \u0622\u0631\u0627\u0645 \u0648 \u0622\u0634\u0641\u062a\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631\u0647\u0627\u06cc CFD<\/strong><\/a><\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-text-align-right has-vivid-cyan-blue-color wp-block-paragraph\"><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/rans-turbulence-models\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc RANS<\/strong><\/a><\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-text-align-right has-vivid-cyan-blue-color wp-block-paragraph\"><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/rsm-turbulence-model\/\"><strong>\u0645\u0639\u0631\u0641\u06cc \u0645\u062f\u0644 \u0622\u0634\u0641\u062a\u06af\u06cc \u062a\u0646\u0634 \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 (RSM)<\/strong><\/a><\/p>\n\n\n\n<p style=\"font-size:18px\" class=\"has-text-color has-text-align-right has-vivid-cyan-blue-color wp-block-paragraph\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/sas-and-des-turbulence-nodels\/\">\u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u062a\u0631\u06a9\u06cc\u0628\u06cc SAS \u0648 DES<\/a><\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-text-align-left has-cyan-bluish-gray-color wp-block-paragraph\"><em><a href=\"https:\/\/cfd-mrk.ir\/index.php\/contact-us\/\"><strong>\u0628\u0631\u0627\u06cc \u06a9\u0633\u0628 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627 \u0645\u0627 \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u06cc\u062f<\/strong><\/a><\/em><br><\/p>\n\n\n\n<p style=\"color:#0d00a3\" class=\"has-text-color has-text-align-left wp-block-paragraph\"><strong><em>\u0645\u062d\u0645\u062f\u0631\u0636\u0627 \u06a9\u0644\u06cc\u0686<\/em><\/strong><br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af (LES) Turbulence Modeling Using Large Eddy Simulation (LES) Methods \u062c\u0631\u06cc\u0627\u0646 \u0622\u0634\u0641\u062a\u0647 \u0628\u0648\u0633\u06cc\u0644\u0647 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc\u06cc \u0628\u0627 \u0637\u06cc\u0641 \u0648\u0633\u06cc\u0639\u06cc \u0627\u0632 \u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0632\u0645\u0627\u0646\u06cc\/\u0637\u0648\u0644\u06cc (Length\/Time Scales) \u062a\u0639\u0631\u06cc\u0641 \u0648 \u062a\u0648\u0635\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0639\u0645\u0648\u0645\u0627 \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\/\u0645\u0642\u06cc\u0627\u0633\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af (Large Eddies\/Scales) \u062f\u0631&hellip;&nbsp;<a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/les-turbulence-model\/\" class=\"more-link\">Read 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