{"id":9127,"date":"2020-06-16T10:53:00","date_gmt":"2020-06-16T07:23:00","guid":{"rendered":"https:\/\/cfd-mrk.ir\/?page_id=9127"},"modified":"2020-06-22T12:16:57","modified_gmt":"2020-06-22T08:46:57","slug":"wall-roughness-specifying","status":"publish","type":"page","link":"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/wall-roughness-specifying\/","title":{"rendered":"\u062a\u0639\u06cc\u06cc\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631"},"content":{"rendered":"\n<h2 class=\"has-very-dark-gray-color has-text-color has-text-align-right wp-block-heading\"><strong>\u062a\u0639\u06cc\u06cc\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631<\/strong><\/h2>\n\n\n\n<h2 class=\"has-very-dark-gray-color has-text-color has-text-align-left wp-block-heading\"><strong>Wall Roughness Specifying<\/strong><\/h2>\n\n\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631 \u062a\u0623\u062b\u06cc\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0631\u0648\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0648\u06cc\u0698\u0647 \u0632\u06cc\u0631 \u0644\u0627\u06cc\u0647 \u0644\u0632\u062c (Viscous Sublayer) \u062f\u0627\u0631\u062f. \u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0633\u06cc\u0627\u0644 \u0631\u0648\u06cc \u0633\u0637\u0648\u062d \u0632\u0628\u0631\u060c \u0648\u0636\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u062f\u0627\u0631\u062f. \u0628\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u062c\u0631\u06cc\u0627\u0646 \u0631\u0648\u06cc \u0633\u0637\u0648\u062d \u0647\u0648\u0627\u067e\u06cc\u0645\u0627\u0647\u0627 (\u0628\u0648\u06cc\u0698\u0647 \u0628\u0627 \u062a\u0648\u0644\u06cc\u062f \u06cc\u062e \u0631\u0648\u06cc \u0628\u0627\u0644\u200c\u0647\u0627)\u060c \u06a9\u0634\u062a\u06cc\u200c\u0647\u0627\u060c \u062a\u0648\u0631\u0628\u0648\u0645\u0627\u0634\u06cc\u0646\u200c\u0647\u0627\u060c \u0645\u0628\u062f\u0644\u200c\u0647\u0627\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc\u060c \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0644\u0648\u0644\u0647 \u06a9\u0634\u06cc \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u062f\u0631 \u0644\u0627\u06cc\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0627\u062a\u0645\u0633\u0641\u0631 \u0648 \u0639\u0648\u0627\u0631\u0636 \u0632\u0645\u06cc\u0646\u06cc \u0628\u0627 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d\u06cc \u0645\u062a\u0641\u0627\u0648\u062a\u06cc \u0645\u0648\u0627\u062c\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0646\u06cc\u0631\u0648\u06cc \u062f\u0631\u06af\u060c \u0627\u0646\u062a\u0642\u0627\u0644 \u062c\u0631\u0645 \u0648 \u062d\u0631\u0627\u0631\u062a \u0631\u0648\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627 \u062a\u0623\u062b\u06cc\u0631 \u0628\u0633\u06cc\u0631 \u0632\u06cc\u0627\u062f\u06cc \u062f\u0627\u0631\u062f. \u062f\u0631 \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u062c\u0631\u06cc\u0627\u0646\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0627\u0632 \u0627\u0647\u0645\u06cc\u062a \u0648\u06cc\u0698\u0647\u200c\u0627\u06cc \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0627\u0633\u062a\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u062f\u06cc\u0648\u0627\u0631\u0647 \u0631\u0627 \u0628\u0631 \u0627\u0633\u0627\u0633 \u0646\u0645\u0648\u0646\u0647 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0642\u0627\u0646\u0648\u0646 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u060c \u0645\u0646\u0638\u0648\u0631 \u0646\u0645\u0648\u062f (\u0634\u06a9\u0644 \u0628\u0627\u0644\u0627).<\/span><\/p>\n<p style=\"text-align: right;\">\n<\/p><h3 style=\"text-align: right;\"><strong><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017463\"><\/a><span style=\"color: #800000;\">\u0642\u0627\u0646\u0648\u0646 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0632\u0628\u0631\u06cc \u0633\u0637\u062d<\/span><\/span><\/strong><\/h3>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0622\u0632\u0645\u0627\u06cc\u0634\u0647\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0634\u062f\u0647 \u062f\u0631 \u0644\u0648\u0644\u0647\u200c\u0647\u0627 \u0648 \u06a9\u0627\u0646\u0627\u0644\u0647\u0627\u06cc \u0632\u0628\u0631\u060c \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u062a\u0648\u0632\u06cc\u0639 \u0633\u0631\u0639\u062a \u062f\u0631 \u0646\u0632\u062f\u06cc\u06a9\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0632\u0628\u0631 \u062f\u0631 \u0645\u0642\u06cc\u0627\u0633 \u0634\u0628\u0647 \u0644\u06af\u0627\u0631\u06cc\u062a\u0645\u06cc(Semi-Logarithmic)\u060c \u0628\u0627&nbsp; \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u06cc\u06a9 \u0646\u06a9\u062a\u0647 (\u0627\u0636\u0641\u0647 \u06a9\u0631\u062f\u0646 \u062b\u0627\u0628\u062a <em><strong>B<\/strong><\/em>&nbsp; \u062f\u0631 \u0642\u0627\u0646\u0648\u0646 \u0644\u06af\u0627\u0631\u06cc\u062a\u0645) \u0627\u0632 \u0647\u0645\u0627\u0646 \u0634\u06cc\u0628 <strong>k\\1 <\/strong>\u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0627\u0633\u062a. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0642\u0627\u0646\u0648\u0646 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u0633\u0631\u0639\u062a \u0645\u062a\u0648\u0633\u0637 \u0628\u0627 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9143 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1.png\" alt=\"\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\" width=\"971\" height=\"489\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1.png 971w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1-300x151.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1-768x387.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1-360x181.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-1-600x302.png 600w\" sizes=\"auto, (max-width: 971px) 100vw, 971px\" \/><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc <strong><em>\u0394B<\/em><\/strong> \u0628\u0647 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0646\u0648\u0639 \u0633\u0637\u062d \u0646\u0638\u06cc\u0631 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u06cc\u060c \u067e\u0631\u0686\u200c\u0647\u0627\u060c \u0634\u06cc\u0627\u0631 \u062f\u0627\u062e\u0644 \u067e\u06cc\u0686 \u0648 \u0645\u0647\u0631\u0647\u060c \u0631\u0632\u0648\u0647\u060c \u0646\u062e\u060c \u0634\u06cc\u0627\u0631\u0647\u0627\u060c \u062a\u0648\u0631\u0647\u0627\u06cc \u0633\u06cc\u0645\u06cc \u0648 \u0645\u0648\u0627\u0631\u062f \u0645\u0634\u0627\u0628\u0647 \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0627\u0646\u062f\u0627\u0632\u0647 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f. \u0637\u0628\u06cc\u0639\u06cc \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0632\u0628\u0631\u06cc \u062c\u0627\u0645\u0639 \u0628\u0631\u0627\u06cc \u062a\u0645\u0627\u0645\u06cc \u0627\u0646\u0648\u0627\u0639 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f. \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0634\u0646(Sand-Grain) \u0648 \u0645\u0648\u0627\u0631\u062f \u0634\u0628\u06cc\u0647 \u0622\u0646 \u0627\u0632 \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0632\u0628\u0631\u06cc \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u060c \u06cc\u06a9 \u0631\u0627\u0628\u0637\u0647 \u0646\u0633\u0628\u062a\u0627\u064b \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc <strong><em>\u0394B<\/em><\/strong> \u0648 \u0628\u0631\u0627\u0633\u0627\u0633 \u0627\u0631\u062a\u0641\u0627\u0639 \u0628\u062f\u0648\u0646 \u0628\u0639\u062f\u06cc \u0632\u0628\u0631\u06cc\u060c <strong><em>K<sup>+<\/sup><sub>s<\/sub><\/em><\/strong>&nbsp;\u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u06a9\u0647 <strong><em>K<sub>s<\/sub><\/em><\/strong> \u0627\u0631\u062a\u0641\u0627\u0639 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0632\u0628\u0631\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062a\u062d\u0644\u06cc\u0644 \u0646\u062a\u0627\u06cc\u062c \u0622\u0632\u0645\u0627\u06cc\u0634\u06af\u0627\u0647\u06cc \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u062a\u0627\u0628\u0639 \u0632\u0628\u0631\u06cc\u060c \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0645\u0646\u0641\u0631\u062f \u0627\u0632 <strong><em>K<sup>+<\/sup><sub>s<\/sub><\/em><\/strong>&nbsp;\u0646\u0628\u0648\u062f\u0647\u060c \u0628\u0644\u06a9\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u062e\u062a\u0644\u0641 \u0627\u0632 \u0645\u0642\u062f\u0627\u0631 <strong><em>K<sub>s<\/sub><sup>+<\/sup><\/em><\/strong> \u0631\u0627 \u0637\u0644\u0628 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc <strong><em>K<sup>+<\/sup><sub>s<\/sub><\/em><\/strong>\u0631\u0627 \u062f\u0631 \u0633\u0647 \u0631\u0698\u06cc\u0645 \u06af\u0641\u062a\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0628\u0627\u0644\u0627 \u0645\u0646\u0638\u0648\u0631 \u0646\u0645\u0648\u062f.<\/span><\/p>\n<p><\/p>\n<ul style=\"text-align: right;\">\n<li><span style=\"color: #000000;\">\u0635\u0627\u0641\u06cc \u0647\u06cc\u062f\u0631\u0648\u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc ( <strong><em>K<sup>+<\/sup><sub>s<\/sub>&lt;2.25<\/em><\/strong>)<\/span><\/li>\n<li><span style=\"color: #000000;\"><span style=\"color: #000000;\">\u062d\u0627\u0644\u062a \u06af\u0630\u0631\u0627 (&nbsp; <strong><em>K<sup>+<\/sup><sub>s<\/sub>&gt;2.25&nbsp; \u0648<\/em><\/strong><em><strong>&nbsp;K<sup>+<\/sup><sub>s<\/sub>&lt;=90<\/strong><\/em><\/span><\/span><span style=\"color: #000000;\">)<\/span><\/li>\n<li><span style=\"color: #000000;\">\u06a9\u0627\u0645\u0644\u0627\u064b \u0632\u0628\u0631 (<em><strong>K<sup>+<\/sup><sub>s<\/sub>&gt;=90<\/strong><\/em>)<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0645\u0648\u0627\u0631\u062f \u0641\u0648\u0642\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u0632 \u0627\u062b\u0631\u0627\u062a \u0632\u0628\u0631\u06cc \u062f\u0631 \u0631\u0698\u06cc\u0645\u0647\u0627\u06cc \u0647\u0645\u0648\u0627\u0631 \u0647\u06cc\u062f\u0631\u0648\u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9\u06cc \u0635\u0631\u0641\u0646\u0638\u0631 \u0646\u0645\u0648\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0631\u0698\u06cc\u0645\u0647\u0627\u06cc \u06af\u0630\u0627\u0631 \u0648 \u06a9\u0627\u0645\u0644\u0627\u064b \u0632\u0628\u0631\u060c \u0627\u062b\u0631\u0627\u062a \u0632\u0628\u0631\u06cc \u0628\u0633\u06cc\u0627\u0631 \u0632\u06cc\u0627\u062f \u0628\u0648\u062f\u0647 \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0645\u0646\u0638\u0648\u0631 \u06af\u0631\u062f\u062f. \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0641\u0644\u0648\u0626\u0646\u062a \u062a\u0645\u0627\u0645 \u0631\u0698\u06cc\u0645\u0647\u0627\u06cc \u0632\u0628\u0631\u06cc \u062f\u0631 \u0633\u0647 \u0631\u0698\u06cc\u0645 \u0641\u0648\u0642 \u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0634\u062f\u0647 \u0648 \u0627\u0632 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc \u0633\u0628\u0633\u06cc-\u0628\u0631\u0627\u062f\u0634\u0627\u0648 (<strong>Cebeci and Bradshaw<\/strong>) \u0648 \u0628\u0631 \u0627\u0633\u0627\u0633 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0646\u06cc\u06a9\u0648\u0631\u0627\u062f\u0632 (<strong>Nikuradse\u2019s data<\/strong>) \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u0631\u0698\u06cc\u0645\u200c\u0647\u0627 \u0628\u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062a\u0639\u0645\u06cc\u0645 \u06cc\u0627\u0641\u062a\u0647\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9148 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2.png\" alt=\"\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u062f\u0631 \u067e\u0627\u0646\u0644 \u0634\u0631\u0637 \u0645\u0631\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\" width=\"982\" height=\"466\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2.png 982w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2-300x142.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2-768x364.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2-360x171.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-eq-2-600x285.png 600w\" sizes=\"auto, (max-width: 982px) 100vw, 982px\" \/><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u062d\u0644\u06af\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0641\u0644\u0648\u0626\u0646\u062a\u060c \u0628\u0627 \u0645\u0634\u062e\u0635 \u0628\u0648\u062f\u0646 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0632\u0628\u0631\u06cc\u060c <em><strong>(<\/strong><\/em> <strong><em>\u0394B(K<sup>+<\/sup><sub>s<\/sub><\/em><\/strong> \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0631\u0648\u0627\u0628\u0637 (5 \u062a\u0627 7) \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f. \u067e\u0633 \u0627\u0632 \u0622\u0646\u060c \u0642\u0627\u0646\u0648\u0646 \u0627\u0635\u0644\u0627\u062d \u0634\u062f\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u062f\u0631 \u0631\u0627\u0628\u0637\u0647 (2) \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062a\u0646\u0634 \u0628\u0631\u0634\u06cc \u0648 \u0633\u0627\u06cc\u0631 \u062a\u0648\u0627\u0628\u0639 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0628\u0631\u0627\u06cc \u062f\u0645\u0627\u06cc \u0645\u062a\u0648\u0633\u0637 \u0648 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0622\u0634\u0641\u062a\u06af\u06cc \u0628\u06a9\u0627\u0631 \u0645\u06cc\u200c\u0631\u0648\u062f. \u062f\u0631 \u062d\u0642\u06cc\u0642\u062a <em><strong>(<\/strong><\/em> <strong><em>\u0394B(K<sup>+<\/sup><sub>s<\/sub><\/em><\/strong>&nbsp;\u0628\u06cc\u0627\u0646\u06af\u0631 \u0627\u0646\u062d\u0631\u0627\u0641 \u0631\u0648 \u0628\u0647 \u067e\u0627\u06cc\u06cc\u0646 \u067e\u0631\u0648\u0641\u06cc\u0644 \u0644\u06af\u0627\u0631\u06cc\u062a\u0645\u06cc \u0633\u0631\u0639\u062a \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9152 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-2.png\" alt=\"\u0646\u0645\u0648\u062f\u0627\u0631 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d\" width=\"643\" height=\"470\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-2.png 643w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-2-300x219.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-2-360x263.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-2-600x439.png 600w\" sizes=\"auto, (max-width: 643px) 100vw, 643px\" \/><\/p>\n<h5 style=\"text-align: center;\"><span style=\"color: #000000;\">\u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0633\u0631\u0639\u062a \u062f\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0635\u0627\u0641 \u0648 \u0632\u0628\u0631<\/span><\/h5>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0634\u06a9\u0644 \u0628\u0627\u0644\u0627 \u0645\u0634\u062e\u0635 \u0627\u0633\u062a \u0627\u06cc\u0646 \u0627\u0646\u062d\u0631\u0644\u0641 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u0646\u062c\u0631 \u0628\u0647 \u062a\u06a9\u06cc\u0646\u06cc (Singularity) \u062f\u0631 \u0632\u0628\u0631\u06cc \u0632\u06cc\u0627\u062f \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 +<strong><em>y<\/em><\/strong>&nbsp;\u0634\u0648\u062f. \u062f\u0631 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 Fluent \u0628\u0633\u062a\u0647 \u0628\u0647 \u0645\u062f\u0644 \u0622\u0634\u0641\u062a\u06af\u06cc \u0648 \u0631\u0641\u062a\u0627\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 (Wall Treatment)\u060c \u062f\u0648 \u0631\u0648\u0634 \u0645\u062a\u0641\u0627\u0648\u062a \u0628\u0631\u0627\u06cc \u067e\u0631\u0647\u06cc\u0632 \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\n<p style=\"text-align: right;\"><strong><span style=\"color: #000000;\">1- \u06a9\u0645 \u06a9\u0631\u062f\u0646 \u0632\u0628\u0631\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u06a9\u0627\u0647\u0634<\/span><\/strong><span style=\"color: #000000;\">+<\/span><strong><span style=\"color: #000000;\"><em>y<\/em><\/span><\/strong><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0648\u0644\u06cc\u0646 \u062a\u0642\u0631\u06cc\u0628 \u062a\u0639\u0631\u06cc\u0641 \u0645\u062c\u062f\u062f \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0628\u0631\u0627\u0633\u0627\u0633 \u0631\u06cc\u0632\u06cc \u0634\u0628\u06a9\u0647 (\u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0648\u0644\u06cc\u0646 \u0627\u0644\u0645\u0627\u0646 \u0686\u0633\u0628\u06cc\u062f\u0647 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u0648 \u0628\u0635\u0648\u0631\u062a <em><strong>(<\/strong><\/em>+<strong><em>K<sub>S<\/sub><sup>+<\/sup>=min(K<sub>S<\/sub><sup>+<\/sup>, y<\/em><\/strong>&nbsp;\u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0645\u0647\u0645 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u06a9\u0647 \u0628\u0627 \u0646\u0632\u062f\u06cc\u06a9 \u0634\u062f\u0646 <strong><em>y<sup>+<\/sup><\/em><\/strong> \u0628\u0647 \u0635\u0641\u0631 \u0628\u0631\u0627\u06cc +<strong><em>K<sub>S<\/sub><\/em><\/strong> \u0646\u06cc\u0632 \u0647\u0645\u06cc\u0646 \u0627\u062a\u0641\u0627\u0642 \u0628\u06cc\u0627\u0641\u062a\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u062f\u0631 \u0686\u0646\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637\u06cc \u0627\u0644\u0632\u0627\u0645 \u0634\u0628\u06a9\u0647 (\u0631\u06cc\u0632\u06cc \u0634\u0628\u06a9\u0647 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0648 \u0628\u0648\u06cc\u0698\u0647 \u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0648\u0644\u06cc\u0646 \u0627\u0644\u0645\u0627\u0646 \u0686\u0633\u0628\u06cc\u062f\u0647 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647) \u0628\u0631\u0627\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0632\u0628\u0631 + <strong><em>y<sup>+<\/sup>&gt;K<sub>S<\/sub><\/em><\/strong>&nbsp;\u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u062a\u0627 \u0628\u062a\u0648\u0627\u0646 \u0627\u062b\u0631 \u06a9\u0627\u0645\u0644 \u0632\u0628\u0631\u06cc \u0631\u0648\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u0627\u0639\u0645\u0627\u0644 \u0646\u0645\u0648\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><strong><span style=\"color: #000000;\">2- \u062c\u0627\u0628\u062c\u0627\u06cc\u06cc \u0645\u062c\u0627\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647<\/span><\/strong><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u06cc\u06a9\u0631\u062f \u062f\u0648\u0645 \u0628\u0631\u0627\u0633\u0627\u0633 \u0627\u06cc\u0646 \u0645\u0634\u0627\u0647\u062f\u0627\u062a \u0627\u0633\u062a \u06a9\u0647 \u0632\u06cc\u0631\u0644\u0627\u06cc\u0647 \u0686\u0633\u0628\u0646\u0627\u06a9 (Viscous Sublayer) \u062a\u0646\u0647\u0627 \u062f\u0631 \u0646\u0632\u062f\u06cc\u06a9\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u0627\u06cc \u0635\u0627\u0641 \u0647\u06cc\u062f\u0631\u0648\u0644\u06cc\u06a9\u06cc \u06a9\u0627\u0645\u0644\u0627\u064b \u062a\u062b\u0628\u06cc\u062a \u0634\u062f\u0647 \u0648 \u062f\u0627\u0626\u0645\u06cc \u0627\u0633\u062a. \u062f\u0631 \u0631\u0698\u06cc\u0645 \u0632\u0628\u0631\u06cc \u0627\u0646\u062a\u0642\u0627\u0644\u06cc\u060c \u0639\u0646\u0627\u0635\u0631 \u0632\u0628\u0631\u06cc \u06a9\u0645\u06cc \u0636\u062e\u06cc\u0645 \u062a\u0631 \u0627\u0632 \u0632\u06cc\u0631 \u0644\u0627\u06cc\u0647 \u0686\u0633\u0628\u0646\u0627\u06a9 \u0647\u0633\u062a\u0646\u062f \u0648 \u0634\u0631\u0648\u0639 \u0628\u0647 \u0645\u0634\u0648\u0634 \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u062f\u0631 \u0631\u0698\u06cc\u0645\u200c\u0647\u0627\u06cc \u06a9\u0627\u0645\u0644\u0627\u064b \u0632\u0628\u0631\u060c \u0632\u06cc\u0631\u0644\u0627\u06cc\u0647 \u0686\u0633\u0628\u0646\u0627\u06a9 \u062a\u062e\u0631\u06cc\u0628 \u0634\u062f\u0647 \u0648 \u0627\u062b\u0631\u0627\u062a \u0686\u0633\u0628\u0646\u0627\u06a9\u06cc \u0646\u0627\u0686\u06cc\u0632 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f. \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0632\u0628\u0631\u06cc \u0645\u0639\u0627\u062f\u0644 \u062f\u0627\u0646\u0647 \u0645\u0627\u0633\u0647 \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062f\u06cc\u0648\u0627\u0631\u06cc \u0628\u0627 \u0644\u0627\u06cc\u0647 \u0627\u06cc \u0627\u0632 \u06a9\u0631\u0647\u200c\u0647\u0627\u06cc\u0686\u0633\u0628\u06cc\u062f\u0647 \u0628\u0647 \u0647\u0645\u060c \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f\u060c \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u06cc\u06a9 \u0627\u0631\u062a\u0641\u0627\u0639 \u0645\u062a\u0648\u0633\u0637 \u200b\u200b\u0632\u0628\u0631\u06cc \u0628\u0648\u062f\u0647 \u0648 \u0646\u0645\u0627\u06cc\u0627\u0646\u06af\u0631 \u0632\u0628\u0631\u06cc \u0627\u0635\u0644\u06cc \u0645\u062a\u0634\u06a9\u0644 \u0627\u0632 \u0642\u0644\u0647\u200c\u0647\u0627 \u0648 \u062f\u0631\u0647\u200c\u0647\u0627\u06cc\u06cc \u0628\u0627 \u0627\u0634\u06a9\u0627\u0644 \u0648 \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u060c \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9158 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-3.png\" alt=\"\u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0645\u0639\u0627\u062f\u0644\" width=\"488\" height=\"145\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-3.png 488w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-3-300x89.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-standard-3-360x107.png 360w\" sizes=\"auto, (max-width: 488px) 100vw, 488px\" \/><\/p>\n<h5 style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0646\u0645\u0627\u06cc\u0634 \u0632\u0628\u0631\u06cc \u0645\u0639\u0627\u062f\u0644 \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647<\/span><\/strong><\/h5>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0634\u06a9\u0644 \u0628\u0627\u0644\u0627 \u06cc\u06a9 \u0628\u0631\u0634 \u062f\u0648 \u0628\u0639\u062f\u06cc \u0627\u0632 \u06cc\u06a9 \u0645\u062f\u0644 \u0633\u0647 \u0628\u0639\u062f\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0648 \u062f\u0627\u06cc\u0631\u0647\u200c\u0647\u0627 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u06cc\u06a9 \u06a9\u0631\u0647 \u06a9\u0647 \u0646\u0645\u0627\u06cc\u0627\u0646\u06af\u0631 \u06cc\u06a9 \u062f\u0627\u0646\u0647 \u0645\u0627\u0633\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u0646\u062f\u060c \u0647\u0633\u062a\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062a\u0648\u0636\u06cc\u062d\u0627\u062a \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0641\u0631\u0636 \u06a9\u0631\u062f \u06a9\u0647 \u0632\u0628\u0631\u06cc \u062f\u0627\u0631\u0627\u06cc \u0627\u062b\u0631 \u0627\u0646\u0633\u062f\u0627\u062f (Blockage Effect) \u0628\u0648\u062f\u0647 \u0648 \u062d\u062f\u0648\u062f 50% \u0627\u0631\u062a\u0641\u0627\u0639 \u0622\u0646 (\u0642\u0637\u0631 \u062f\u0627\u06cc\u0631\u0647\u200c\u0647\u0627) \u0631\u0627 \u0627\u0634\u063a\u0627\u0644 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0646\u0637\u0642\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647(\u0647\u0627) \u0631\u0627 \u0628\u0647 50% \u062f\u0631\u0635\u062f \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0645\u0646\u062a\u0642\u0644 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0645\u0648\u062c\u0628 \u062a\u0635\u062d\u06cc\u062d \u0645\u0642\u062f\u0627\u0631 +<strong><em>y<\/em><\/strong>&nbsp;\u0628\u0631\u0627\u06cc \u0645\u0631\u06a9\u0632 \u0627\u0648\u0644\u06cc\u0646 \u0627\u0644\u0645\u0627\u0646(\u0647\u0627\u06cc) \u0686\u0633\u0628\u06cc\u062f\u0647 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0631\u0627\u0628\u0637\u0647 <strong><em>y<sup>+<\/sup>=y<sup>+<\/sup>+K<sub>S<\/sub><sup>+<\/sup>\/2<\/em><\/strong> \u0628\u0627\u0639\u062b \u0627\u0635\u0644\u0627\u062d \u0635\u062d\u06cc\u062d +<strong><em>y<\/em><\/strong><strong><em>&nbsp;&nbsp;<\/em><\/strong>\u0628\u0627 \u062c\u0627\u0628\u062c\u0627\u06cc\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0645\u06cc\u200c\u0634\u0648\u062f. \u0646\u062a\u06cc\u062c\u0647 \u0627\u06cc\u0646\u06a9\u0647 \u0645\u0634\u06a9\u0644 \u062a\u06a9\u06cc\u0646\u06af\u06cc \u0628\u0631\u0637\u0631\u0641 \u06af\u0634\u062a\u0647 \u0648 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0627\u0632 \u0634\u0628\u06a9\u0647 \u0631\u06cc\u0632\u062a\u0631 \u06cc\u0627 \u0628\u0627 \u0627\u0631\u062a\u0641\u0627\u0639 \u06a9\u0645\u062a\u0631 \u062f\u0631 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0645\u0648\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u06cc\u06a9\u0631\u062f \u062f\u0648\u0645 (\u062c\u0627\u0628\u062c\u0627\u06cc\u06cc \u0645\u062c\u0627\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647)\u060c \u0631\u0627\u0647\u06a9\u0627\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0628\u0631\u0627\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0632\u0628\u0631 (Rough Walls) \u0648 \u062a\u062d\u062a \u0634\u0631\u0627\u06cc\u0637 \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/span><\/p>\n<ul style=\"text-align: right;\">\n<li><span style=\"color: #000000;\">\u062f\u0631 \u062a\u0645\u0627\u0645\u06cc \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u062f\u0648 \u0645\u0639\u0627\u062f\u0644\u0647\u200c\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0645\u0639\u0627\u062f\u0644\u0647 \u03c9<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0628\u0631\u0627\u06cc \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u062f\u0648 \u0645\u0639\u0627\u062f\u0644\u0647\u200c\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0645\u0639\u0627\u062f\u0644\u0647 \u03b5 \u06a9\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0648 \u0645\u0642\u06cc\u0627\u0633 \u067e\u0630\u06cc\u0631 (Scalable) \u062f\u06cc\u0648\u0627\u0631\u0647 \u2013\u06a9\u0647 \u0627\u0644\u0628\u062a\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u062a\u0648\u0627\u0628\u0639 \u0645\u0642\u06cc\u0627\u0633 \u067e\u0630\u06cc\u0631 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0631\u062c\u062d\u06cc\u062a \u062f\u0627\u0631\u062f- \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0642\u0627\u0628\u0644 \u0630\u06a9\u0631 \u0627\u0633\u062a \u06a9\u0647 \u0645\u0639\u0627\u062f\u0644\u0647 \u03b5 \u062f\u0631 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc &nbsp;K-E (Standard, RNG, Realizable)\u060c \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u062a\u0646\u0634 \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 Linear Pressure-Strain \u0648 DES \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 (K-E (Realizable \u0628\u06a9\u0627\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0631\u0627\u06cc \u0633\u0627\u06cc\u0631 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u062f\u0631\u06af\u06cc\u0631 \u0628\u0627 \u062f\u06cc\u0648\u0627\u0631\u0647(\u0647\u0627\u06cc) \u0632\u0628\u0631 (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0645\u062f\u0644 \u0627\u0633\u067e\u0627\u0644\u0627\u0631\u062a-\u0622\u0644\u0645\u0627\u0631\u0627\u0633) \u06a9\u0627\u0644\u06cc\u0628\u0631\u0627\u0633\u06cc\u0648\u0646 \u0645\u0634\u062e\u0635\u06cc \u0628\u0631\u0627\u06cc \u0634\u0628\u06a9\u0647\u200c\u0647\u0627 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f \u0648 \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0634\u0645\u0627\u0631 1 (\u06a9\u0627\u0647\u0634 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 +<strong><em>y<\/em><\/strong> \u06a9\u0645 \u0645\u06cc\u200c\u0634\u0648\u062f) \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f. \u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0641\u0631\u0636 \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u0632\u0628\u0631 \u0628\u0627 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0646\u062f\u0627\u0631\u062f:<\/span><\/p>\n<ul style=\"text-align: right;\">\n<li><span style=\"color: #000000;\">\u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0647 \u03b5 \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0631\u0627\u0628\u0637\u0647 Enhanced Wall Function \u0648 Menter-Lechner<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0645\u062f\u0644 \u06af\u0630\u0631\u0627\u06cc K-Kl- \u03c9\u060c<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0645\u062f\u0644 \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06af\u0631\u062f\u0627\u0628\u0647\u200c\u0647\u0627\u06cc \u0628\u0632\u0631\u06af LES<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\">\n<\/p><h4 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017464\"><\/a><span style=\"color: #ff0000;\"><strong>\u062a\u0646\u0638\u06cc\u0645 \u067e\u0627\u0631\u0627\u0645\u062a\u0631\u0647\u0627\u06cc \u0632\u0628\u0631\u06cc<\/strong><\/span><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0631\u0627\u06cc \u0645\u062f\u0644\u0633\u0627\u0632\u06cc \u0627\u062b\u0631\u0627\u062a \u0632\u0628\u0631\u06cc (Standard Roughness Model) \u062f\u0631 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0641\u0644\u0648\u0626\u0646\u062a\u060c \u0628\u0627\u06cc\u062f \u062f\u0648 \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc\u060c <strong><em>K<sub>S<\/sub><\/em><\/strong> (\u06a9\u0627\u062f\u0631 \u0645\u062a\u0646 Roughness Height)\u060c \u0648 \u062b\u0627\u0628\u062a \u0632\u0628\u0631\u06cc\u060c <strong><em>C<sub>S<\/sub><\/em><\/strong> (\u06a9\u0627\u062f\u0631 \u0645\u062a\u0646 Roughness Constant)\u060c \u0645\u0634\u062e\u0635 \u06af\u0631\u062f\u062f (\u0634\u06a9\u0644 \u0627\u0628\u062a\u062f\u0627\u06cc \u0635\u0641\u062d\u0647). \u0637\u0628\u0642 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0641\u0644\u0648\u0626\u0646\u062a\u060c \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0635\u0641\u0631 \u0648 \u0628\u06cc\u0627\u0646\u06af\u0631 \u06cc\u06a9 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0628\u0633\u06cc\u0627\u0631 \u0635\u0627\u0641 \u0648 \u0647\u0645\u0648\u0627\u0631 \u0627\u0633\u062a. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u0631\u0627\u06cc \u0645\u0646\u0638\u0648\u0631 \u06a9\u0631\u062f\u0646 \u0627\u062b\u0631\u0627\u062a \u0632\u0628\u0631\u06cc \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u0645\u0642\u062f\u0627\u0631 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u063a\u06cc\u0631 \u0627\u0632 \u0635\u0641\u0631 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f. \u0628\u0631\u0627\u06cc \u0628\u0631\u0627\u06cc \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u060c \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc\u060c\u200c<strong><em>K<sub>s<\/sub><\/em><\/strong> \u060c \u0647\u0645\u0627\u0646 \u0627\u0631\u062a\u0641\u0627\u0639 \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u0645\u0627 \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc \u0628\u0631\u0627\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647\u200c\u0647\u0627\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u063a\u06cc\u0631 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u060c \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0628\u0631\u0627\u0628\u0631 \u0627\u0631\u062a\u0641\u0627\u0639 \u0645\u062a\u0648\u0633\u0637 (<strong><em>D<sub>50<\/sub><\/em><\/strong>) \u0641\u0631\u0636 \u0634\u062f\u0647 \u06a9\u0647 \u062a\u0642\u0631\u06cc\u0628 \u0645\u0646\u0627\u0633\u0628\u06cc \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0633\u0627\u06cc\u0631 \u0627\u0646\u0648\u0627\u0639 \u0632\u0628\u0631\u06cc \u0633\u0637\u0648\u062d\u060c \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u0627\u0632 \u0645\u0642\u062f\u0627\u0631 \u0645\u0639\u0627\u062f\u0644 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 <strong><em>K<sub>s<\/sub><\/em><\/strong>&nbsp;\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0645\u0642\u062f\u0627\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062b\u0627\u0628\u062a \u06cc\u0627 \u0645\u062a\u063a\u06cc\u0631 (\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 UDF) \u0628\u0627\u0634\u062f.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0642\u062f\u0627\u0631 \u0645\u0646\u0627\u0633\u0628 \u0628\u0631\u0627\u06cc \u062b\u0627\u0628\u062a \u0632\u0628\u0631\u06cc\u060c <strong><em>C<sub>S<\/sub><\/em><\/strong>\u060c \u06a9\u0627\u0645\u0644\u0627\u064b \u0628\u0647 \u0646\u0648\u0639 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f. \u0637\u0628\u0642 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0646\u0631\u0645\u200c\u0627\u0641\u0632\u0627\u0631 \u0641\u0644\u0648\u0626\u0646\u062a\u060c <strong><em>C<sub>S<\/sub>=0.5<\/em><\/strong> \u0645\u06cc\u200c\u0628\u0627\u0634\u062f \u06a9\u0647 \u0628\u0631\u0627\u0633\u0627\u0633 \u0645\u062f\u0644 \u0622\u0634\u0641\u062a\u06af\u06cc &nbsp;\u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0646\u06cc\u06a9\u0648\u0631\u0627\u062f\u0632 (Nikuradse) \u0648 \u0628\u0631\u0627\u06cc \u0644\u0648\u0644\u0647\u200c\u0647\u0627\u06cc \u0632\u0628\u0631 \u0628\u0627 \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a \u0648 \u0645\u062a\u0631\u0627\u06a9\u0645 (Tightly-Packed)\u060c \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u0644\u0628\u062a\u0647 \u062f\u0631 \u0645\u0633\u0627\u0626\u0644 \u0628\u0633\u06cc\u0627\u0631 \u0632\u06cc\u0627\u062f\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0632\u0628\u0631\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a \u0646\u0628\u0627\u0634\u062f \u0648 \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u0646\u0627\u0633\u0628\u06cc \u0628\u0631\u0627\u06cc \u067e\u0627\u0631\u0627\u0645\u062a\u0631 \u062b\u0627\u0628\u062a \u0632\u0628\u0631\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u0648\u062f. \u0622\u0632\u0645\u0627\u06cc\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u062f\u0631 \u0627\u06cc\u0646 \u0632\u0645\u06cc\u0646\u0647 \u0627\u0646\u062c\u0627\u0645 \u0634\u062f\u0647 \u0648 \u0646\u062a\u06cc\u062c\u0647 \u0622\u0646 \u0627\u06cc\u0646\u0633\u062a \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0632\u0628\u0631\u06cc\u0647\u0627\u06cc \u0627\u0632 \u0646\u0648\u0639 \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u063a\u06cc\u0631 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a\u060c \u0634\u06cc\u0627\u0631\u0647\u0627 \u0648 \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u0633\u06cc\u0645\u06cc \u0645\u0642\u0627\u062f\u06cc\u0631 &nbsp;<strong><em>C<sub>S<\/sub>=0.5~1.0<\/em><\/strong> \u0645\u0646\u0627\u0633\u0628\u062a\u0631\u06cc\u0646 \u06af\u0632\u06cc\u0646\u0647 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0645\u062a\u0623\u0633\u0641\u0627\u0646\u0647 \u0647\u0646\u0648\u0632 \u0631\u0627\u0647 \u062d\u0644 \u062f\u0642\u06cc\u0642\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062b\u0627\u0628\u062a \u0632\u0628\u0631\u06cc\u060c <strong><em>C<sub>S<\/sub><\/em><\/strong>\u060c \u0627\u0631\u0627\u0626\u0647 \u0646\u0634\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u060c \u062f\u0631\u0635\u0648\u0631\u062a\u06cc\u06a9\u0647 \u0627\u0631\u062a\u0641\u0627\u0639 \u0627\u0648\u0644\u06cc\u0646 \u0631\u062f\u06cc\u0641 \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u0631\u0648\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0632 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u06a9\u0648\u062a\u0627\u0647\u200c\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0645\u0633\u0626\u0644\u0647 \u0627\u0632 \u0644\u062d\u0627\u0638 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0645\u0641\u0647\u0648\u0645\u06cc \u0646\u062f\u0627\u0634\u062a\u0647 \u0648 \u062f\u0631 \u0646\u062a\u06cc\u062c\u0647 \u0646\u062a\u0627\u06cc\u062c \u0628\u062f\u0633\u062a \u0622\u0645\u062f\u0647 \u0627\u0632 \u062f\u0642\u062a \u0645\u0646\u0627\u0633\u0628\u06cc \u0628\u0631\u062e\u0648\u0631\u062f\u0627\u0631 \u0646\u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u0628\u0647\u0645\u06cc\u0646 \u062e\u0627\u0637\u0631 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a \u06cc\u0627\u0641\u062a\u0646 \u0628\u0647 \u0646\u062a\u0627\u06cc\u062c \u062f\u0642\u06cc\u0642\u062a\u0631 \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u0641\u0627\u0635\u0644\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u062a\u0627 \u0645\u0631\u06a9\u0632 \u0627\u0644\u0645\u0627\u0646 \u0645\u062c\u0627\u0648\u0631 \u0622\u0646 \u0627\u0632 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0628\u0632\u0631\u06af\u062a\u0631 \u0628\u0627\u0634\u062f.<\/span><\/p>\n<p style=\"text-align: right;\">\n<\/p><h3 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017465\"><\/a><span style=\"color: #800000;\"><strong>\u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0632\u0628\u0631\u06cc \u0627\u0636\u0627\u0641\u06cc \u0628\u0631\u0627\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06cc\u062e \u0632\u062f\u06af\u06cc<\/strong><\/span><\/span><\/h3>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0627\u0633\u067e\u0627\u0644\u0627\u0631\u062a-\u0622\u0644\u0645\u0627\u0631\u0627\u0633 \u0648 \u06cc\u0627 SST k-\u03c9 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u062f\u06cc\u06af\u0631\u06cc (\u0645\u0639\u0631\u0648\u0641 \u0628\u0647 Icing) \u0628\u0631\u0627\u06cc \u062a\u0639\u06cc\u06cc\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u062f\u0631 \u062f\u0633\u062a\u0631\u0633 \u062e\u0648\u0627\u0647\u0646\u062f \u0628\u0648\u062f. \u0627\u0633\u0627\u0633\u0627 \u0627\u06cc\u0646 \u0645\u062f\u0644\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u0634\u0628\u06cc\u0647 \u0633\u0627\u0632\u06cc \u06cc\u062e \u0632\u062f\u06af\u06cc \u0633\u0637\u0648\u062d \u0628\u0648\u06cc\u0698\u0647 \u062f\u0631 \u0648\u0633\u0627\u06cc\u0644 \u067e\u0631\u0646\u062f\u0647 \u0637\u0631\u0627\u062d\u06cc \u0634\u062f\u0647\u200c\u0627\u0646\u062f. \u0647\u0631 \u0686\u0646\u062f \u0628\u0631\u0627\u06cc \u0633\u0627\u06cc\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0622\u0646\u200c\u0647\u0627 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0637\u0648\u0631 \u06a9\u0627\u0645\u0644 \u062d\u0644 \u0634\u062f\u0647 \u0648 \u0627\u0644\u0628\u062a\u0647 \u0632\u0628\u0631\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u0646\u0633\u0628\u062a \u0628\u0647 \u0627\u0644\u0645\u0627\u0646\u200c\u0647\u0627\u06cc \u0686\u0633\u0628\u06cc\u062f\u0647 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0628\u0647 \u0646\u0633\u0628\u062a \u0628\u0632\u0631\u06af \u0628\u0627\u0634\u062f \u0646\u06cc\u0632 \u0642\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\n<ul style=\"text-align: right;\">\n<li><span style=\"color: #000000;\">\u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0647\u0646\u06af\u0627\u0645 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc Icing \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0645\u062f\u0644 \u0627\u0633\u067e\u0627\u0644\u0627\u0631\u062a-\u0622\u0644\u0645\u0627\u0631\u0627\u0633\u060c \u062a\u0646\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0632 \u067e\u0631\u062f\u0627\u0632\u0634\u06af\u0631 \u0645\u0648\u0627\u0632\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u0645\u0627\u06cc\u06cc\u062f. \u0628\u0647 \u0647\u0631 \u0635\u0648\u0631\u062a \u0628\u0631\u0627\u06cc \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0641\u0627\u06cc\u0644 \u06cc\u0627 \u0646\u0645\u0627\u06cc\u0634 \u0646\u062a\u0627\u06cc\u062c \u067e\u0631\u062f\u0627\u0632\u0634\u06af\u0631 \u0633\u0631\u06cc\u0627\u0644 \u0646\u06cc\u0632 \u0642\u0627\u0628\u0644 \u0628\u06a9\u0627\u0631\u06af\u06cc\u0631\u06cc \u0627\u0633\u062a.<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0645\u062f\u0644\u200c\u0647\u0627\u06cc Icing \u062a\u0646\u0647\u0627 \u0628\u0631\u0627\u06cc \u0622\u0634\u0641\u062a\u06af\u06cc \u0647\u0645\u0631\u0627\u0647 \u0628\u0627 \u0639\u062f\u062f \u0631\u06cc\u0646\u0648\u0644\u062f\u0632 \u067e\u0627\u06cc\u06cc\u0646 \u0648 \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u0631\u06cc\u0632 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u062f\u06cc\u0648\u0627\u0631\u0647 \u062f\u0631\u0633\u062a \u0639\u0645\u0644 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u067e\u0627\u0646\u0644 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0686\u0647\u0627\u0631 \u06af\u0632\u06cc\u0646\u0647 \u0628\u0631\u0627\u06cc \u0632\u0628\u0631\u06cc \u06cc\u062e \u0632\u062f\u06af\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u0646\u062f \u06a9\u0647 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/span><\/p>\n<ul style=\"text-align: right;\">\n<li><span style=\"color: #000000;\">\u0632\u0628\u0631\u06cc \u0645\u0634\u062e\u0635 (Specified Roughness)<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0631\u0627\u0628\u0637\u0647 \u0646\u0627\u0633\u0627 (NASA Correlation)<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0645\u062f\u0644 \u0634\u0627\u06cc\u0646 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 (Shin-et-al)<\/span><\/li>\n<li><span style=\"color: #000000;\">\u0641\u0627\u06cc\u0644 \u0648\u0631\u0648\u062f\u06cc ICE3D Roughness<\/span><\/li>\n<\/ul>\n<p style=\"text-align: right;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9170 size-large\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-777x1024.png\" alt=\"\u062a\u0639\u06cc\u06cc\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u06cc\u062e \u0632\u062f\u06af\u06cc \u062f\u0631 \u067e\u0627\u0646\u0644 \u0634\u0631\u0637 \u0645\u0631\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\" width=\"640\" height=\"843\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-777x1024.png 777w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-228x300.png 228w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-768x1012.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-205x270.png 205w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1-600x791.png 600w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-1.png 836w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u06af\u0632\u06cc\u0646\u0647 \u0632\u0628\u0631\u06cc \u0628\u0627\u0644\u0627 (Icing) \u062f\u0631 \u067e\u0627\u0646\u0644 \u0634\u0631\u0637 \u0645\u0631\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u06a9\u0647 \u062a\u0646\u0647\u0627 \u0628\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u062f\u0644\u200c\u0647\u0627\u06cc \u0627\u0633\u067e\u0627\u0644\u0627\u0631\u062a-\u0622\u0644\u0645\u0627\u0631\u0627\u0633 \u0648 SST k-\u03c9 \u0641\u0639\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017466\"><\/a><span style=\"color: #ff0000;\"><strong>\u0632\u0628\u0631\u06cc \u0645\u0634\u062e\u0635 (Specified Roughness)<\/strong><\/span><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0645\u0627\u0646\u0646\u062f \u0632\u0628\u0631\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0634\u0631\u062d \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062f\u0631 \u0642\u0633\u0645\u062a \u0642\u0628\u0644 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017467\"><\/a><span style=\"color: #ff0000;\"><strong>\u0631\u0627\u0628\u0637\u0647 \u0646\u0627\u0633\u0627 (NASA Correlation)<\/strong><\/span><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06af\u0632\u06cc\u0646\u0647 NASA Correlation\u060c \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647\u200c\u0627\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0645\u062f\u0644 \u062a\u062c\u0631\u0628\u06cc \u062a\u0648\u0633\u0639\u0647 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u062a\u0648\u0633\u0637 \u0646\u0627\u0633\u0627 \u2013\u0628\u0631\u0627\u06cc \u06cc\u062e \u0632\u062f\u06af\u06cc \u062c\u0631\u06cc\u0627\u0646\u200c\u0647\u0627\u06cc \u0647\u0648\u0627- \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06cc\u0646 \u0631\u0648\u0627\u0628\u0637 \u0639\u0628\u0627\u0631\u062a\u0646\u062f \u0627\u0632:<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9173 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq.png\" alt=\"\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0632\u0628\u0631\u06cc \u06cc\u062e \u0632\u062f\u06af\u06cc \u0646\u0627\u0633\u0627\" width=\"978\" height=\"692\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq.png 978w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq-300x212.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq-768x543.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq-360x255.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-eq-600x425.png 600w\" sizes=\"auto, (max-width: 978px) 100vw, 978px\" \/><\/p>\n<h4 style=\"text-align: right;\"><strong><span style=\"color: #ff0000;\">\u0645\u062f\u0644 \u0634\u0627\u06cc\u0646 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 (Shin-et-al)<\/span><\/strong><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u06cc\u0646 \u0645\u062f\u0644 \u0646\u06cc\u0632 \u0627\u0632 \u06cc\u06a9 \u0631\u0627\u0628\u0637\u0647 \u062a\u062c\u0631\u0628\u06cc \u062a\u0648\u0633\u0639\u0647 \u06cc\u0627\u0641\u062a\u0647 \u0628\u0631\u0627\u06cc \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647-\u0645\u0627\u0633\u0647 \u062a\u0648\u0633\u0637 \u0634\u0627\u06cc\u0646 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646 \u0628\u0647\u0631\u0647 \u0645\u06cc\u200c\u0628\u0631\u062f. \u062f\u0631 \u0648\u0627\u0642\u0647 \u0627\u06cc\u0646 \u0645\u062f\u0644 \u0628\u0647 \u0646\u0648\u0639\u06cc \u0631\u0627\u0628\u0637\u0647 \u0646\u0627\u0633\u0627 \u0631\u0627 \u0628\u0627 \u0641\u0627\u06a9\u062a\u0648\u0631 MVD \u0628\u0647\u0628\u0648\u062f \u0645\u06cc\u200c\u0628\u062e\u0634\u062f. MVD \u0642\u0637\u0631 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0642\u0637\u0631\u0647 \u0628\u0648\u062f\u0647 \u0648 \u062f\u0631 \u067e\u0627\u0646\u0644 \u0634\u0631\u0637 \u0645\u0631\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631\u0647 \u062f\u0631 Fluent \u0628\u0627 \u0639\u0646\u0648\u0627\u0646 Droplet Diameter \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9177 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al.png\" alt=\"\u0645\u0639\u0627\u062f\u0644\u0647 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u06cc\u062e \u0632\u062f\u06af\u06cc \u0634\u0627\u06cc\u0646 \u0648 \u0647\u0645\u06a9\u0627\u0631\u0627\u0646\" width=\"961\" height=\"246\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al.png 961w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al-300x77.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al-768x197.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al-360x92.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2020\/06\/wall-roughness-Icing-shine-et-al-600x154.png 600w\" sizes=\"auto, (max-width: 961px) 100vw, 961px\" \/><\/p>\n<h4 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc43017469\"><\/a><strong><span style=\"color: #ff0000;\">\u0641\u0627\u06cc\u0644 \u0648\u0631\u0648\u062f\u06cc ICE3D Roughness<\/span><\/strong><\/span><\/h4>\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u06cc\u0646 \u06af\u0632\u06cc\u0646\u0647 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u062f\u0627\u0646\u0647 \u0645\u0627\u0633\u0647 \u0627\u0632 \u06cc\u06a9 \u0641\u0627\u06cc\u0644 \u0648\u0631\u0648\u062f\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0646\u0648\u062f\u0647\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0628\u062f\u0633\u062a \u0622\u0645\u062f\u0647 \u0627\u0632 \u0646\u0631\u0645 \u0627\u0641\u0632\u0627\u0631 FENSAP-ICE \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f.\u0627\u06cc\u0646 \u0641\u0627\u06cc\u0644 \u0634\u0627\u0645\u0644 \u0645\u062e\u062a\u0635\u0627\u062a \u0647\u0646\u062f\u0633\u06cc \u0648 \u0627\u0631\u062a\u0641\u0627\u0639 \u0632\u0628\u0631\u06cc \u0647\u0631 \u06af\u0631\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a\u06cc \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631\u0647 \u0627\u0633\u062a {<strong>x<sub>i<\/sub>, y<sub>i<\/sub>, z<sub>i<\/sub>, h<sub>s,i<\/sub><\/strong>}. \u067e\u0633 \u0627\u0632 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0627\u0633\u0645 \u0641\u0627\u06cc\u0644 \u062f\u0631 \u0641\u0647\u0631\u0633\u062a \u0645\u0631\u0628\u0648\u0637\u0647 \u0638\u0627\u0647\u0631 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0637\u0631\u06cc\u0642\u0647 \u062e\u0648\u0627\u0646\u062f\u06cc\u0646 \u0627\u06cc\u0646 \u0641\u0627\u06cc\u0644 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/span><\/p>\n<p style=\"text-align: left;\"><span style=\"color: #000000;\">File &#8211;&gt; Read &#8211;&gt; Profile<\/span><\/p>\n<p><\/p>\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\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/\">\u0628\u0627\u0632\u06af\u0634\u062a<\/a><\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-background has-text-align-right has-medium-font-size 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\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/moving-wall-boundary-condition\/\">\u0634\u0631\u0637 \u0645\u0631\u0632\u06cc \u062f\u06cc\u0648\u0627\u0631 \u0645\u062a\u062d\u0631\u06a9<\/a><\/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\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/wall-shear-stress-specifying\/\">\u062a\u0639\u06cc\u06cc\u0646 \u062a\u0646\u0634 \u0628\u0631\u0634\u06cc \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631<\/a><\/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\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/wall-thermal-boundary-conditions\/\">\u062a\u0639\u06cc\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u062d\u0631\u0627\u0631\u062a\u06cc \u062f\u06cc\u0648\u0627\u0631<\/a><\/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\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fluent-software-training\/boundary-condition\/wall-boundary-condition\/wall-species-boundary-condition\/\">\u0634\u0631\u0627\u06cc\u0637 \u0645\u0631\u0632\u06cc \u06af\u0648\u0646\u0647\u200c\u0647\u0627\u06cc \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0631\u0648\u06cc \u062f\u06cc\u0648\u0627\u0631<\/a><\/strong><\/p>\n\n\n\n<p style=\"font-size:18px\" 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><\/p>\n\n\n\n<p style=\"color:#1700a3\" class=\"has-text-color has-text-align-left wp-block-paragraph\"><strong><em><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/mohammad-reza-kelich-cv\/\">\u0645\u062d\u0645\u062f\u0631\u0636\u0627 \u06a9\u0644\u06cc\u0686<\/a><\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u062a\u0639\u06cc\u06cc\u0646 \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631 Wall Roughness Specifying \u0632\u0628\u0631\u06cc \u0633\u0637\u062d \u0631\u0648\u06cc \u0645\u0631\u0632 \u062f\u06cc\u0648\u0627\u0631 \u062a\u0623\u062b\u06cc\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0631\u0648\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u0644\u0627\u06cc\u0647 \u0645\u0631\u0632\u06cc \u0628\u0648\u06cc\u0698\u0647 \u0632\u06cc\u0631 \u0644\u0627\u06cc\u0647 \u0644\u0632\u062c (Viscous Sublayer) \u062f\u0627\u0631\u062f. \u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0633\u06cc\u0627\u0644 \u0631\u0648\u06cc \u0633\u0637\u0648\u062d \u0632\u0628\u0631\u060c \u0648\u0636\u0639\u06cc\u062a\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u062f\u0627\u0631\u062f. \u0628\u0639\u0646\u0648\u0627\u0646&hellip;&nbsp;<a 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