{"id":10820,"date":"2021-03-02T20:13:00","date_gmt":"2021-03-02T16:43:00","guid":{"rendered":"https:\/\/cfd-mrk.ir\/?page_id=10820"},"modified":"2021-11-28T09:15:27","modified_gmt":"2021-11-28T05:45:27","slug":"finite-difference-method","status":"publish","type":"page","link":"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/partial-differential-equation\/finite-difference-method\/","title":{"rendered":"\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f"},"content":{"rendered":"\r\n<h2 class=\"has-text-align-right has-black-color has-text-color wp-block-heading\"><strong>\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/strong><\/h2>\r\n\r\n\r\n\r\n<h2 class=\"has-text-align-left has-black-color has-text-color wp-block-heading\"><strong>Finite Difference Method<\/strong><\/h2>\r\n\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u062f\u0631 \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0628\u0631\u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647 \u0648 \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0631\u0648\u06cc \u06af\u0631\u0647\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u062a\u0648\u0633\u0639\u0647 \u06cc\u0627\u0641\u062a\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646\u06a9\u0627\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u0628\u06a9\u0647\u200c\u0628\u0646\u062f\u06cc \u0648 \u0627\u0639\u0645\u0627\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u06a9\u0645 \u0631\u0648\u06cc \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u06af\u0631\u0647\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f. \u062a\u0642\u0631\u06cc\u0628\u200c\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u0628\u0631\u0627\u06cc \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0622\u0646\u0647\u0627 \u062a\u0642\u0631\u06cc\u0628\u0647\u0627\u06cc \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0628\u0633\u0637 \u0633\u0631\u06cc \u062a\u06cc\u0644\u0648\u0631 \u062a\u0648\u0627\u0628\u0639 \u0648 \u062a\u0642\u0631\u06cc\u0628 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0686\u0646\u062f \u062c\u0645\u0644\u0647\u200c\u0627\u06cc\u200c\u0647\u0627\u06cc\u06cc \u0628\u0627 \u0645\u0631\u062a\u0628\u0647\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. <strong><em>\u0628\u0627 \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/em><\/strong> <\/span><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0644\u0627\u0632\u0645 \u0628\u0647 \u062a\u0648\u0636\u06cc\u062d \u0627\u0633\u062a \u06a9\u0647 \u0637\u0628\u06cc\u0639\u062a \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u0628\u062f\u0633\u062a \u0622\u0645\u062f\u0647\u060c \u0628\u0647 \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0648\u0627\u0628\u0633\u062a\u0647 \u0627\u0633\u062a. \u0628\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062a\u0639\u0627\u062f\u0644\u06cc (\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u06cc\u0636\u0648\u06cc)\u060c \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u062d\u0627\u0635\u0644\u0647 \u0628\u0627\u06cc\u062f \u0628\u0635\u0648\u0631\u062a \u0647\u0645\u0632\u0645\u0627\u0646 \u0648 \u0628\u0627 \u0645\u0634\u062e\u0635 \u0628\u0648\u062f\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0645\u0631\u0632\u06cc\u060c \u062d\u0644 \u0634\u0648\u062f. \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc\u06a9\u0647\u060c \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0633\u0647\u0645\u0648\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u0645\u0631\u0628\u0648\u0637\u0647 \u0631\u0627 \u0645\u0633\u062a\u0642\u0644 \u0627\u0632 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u062d\u0644 \u06a9\u0631\u062f\u060c \u0647\u0631\u0686\u0646\u062f \u06a9\u0647 \u062d\u0644 \u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u0646\u06cc\u0632 \u0627\u0645\u06a9\u0627\u0646\u200c\u067e\u0630\u06cc\u0631 \u0627\u0633\u062a. \u0631\u0648\u0634\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0628\u0631\u0627\u06cc \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u062a\u0648\u0633\u0639\u0647 \u06cc\u0627\u0641\u062a\u0647 \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0622\u0646\u0647\u0627 \u0631\u0627 \u062f\u0631 \u062f\u0648 \u062f\u0633\u062a\u0647 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d (<strong>Explicit<\/strong>) \u0648 \u0636\u0645\u0646\u06cc (<strong>Implicit<\/strong>) \u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0646\u0645\u0648\u062f. \u062f\u0631 \u0637\u06cc \u0641\u0631\u0622\u06cc\u0646\u062f \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0648\u0627\u0631\u062f\u06cc \u0646\u0638\u06cc\u0631 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc (Stability)\u060c \u0633\u0627\u0632\u06af\u0627\u0631\u06cc(Consistency) \u0648 \u062e\u0637\u0627\u0647\u0627\u06cc \u0642\u0637\u0639 \u062f\u0631 \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u067e\u062f\u06cc\u062f\u0627\u0631 \u0634\u062f\u0647 \u06a9\u0647 \u0628\u0627\u06cc\u062f \u0628\u0647 \u0622\u0646 \u062a\u0648\u062c\u0647 \u0646\u0645\u0648\u062f. \u0627\u06cc\u0646 \u0645\u0648\u0627\u0631\u062f \u062f\u0631 \u0627\u062f\u0627\u0645\u0647\u200c\u06cc \u0627\u06cc\u0646 \u0645\u0628\u062d\u062b \u062a\u0648\u0636\u06cc\u062d \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<h3 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc61605236\"><\/a><span style=\"color: #800000;\"><strong>\u0645\u062a\u062f\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u062a\u0648\u0633\u0639\u0647 \u06cc\u0627\u0641\u062a\u0647 \u0628\u0631\u0627\u06cc \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u062f\u0631 \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc<\/strong><\/span><\/span><\/h3>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0648\u0644\u06cc\u0646 \u06af\u0627\u0645 \u062f\u0631 \u0645\u062a\u062f \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u0628\u0631\u0627\u06cc \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc\u060c \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0642\u0644\u0645\u0631\u0648 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u0628\u06a9\u0647\u200c\u0647\u0627\u06cc \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0628\u0631\u0627\u06cc \u062d\u0644 \u06cc\u06a9 \u0645\u0639\u0627\u062f\u0644\u0647 \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644\u06cc \u06a9\u0647 \u062f\u0631 \u0622\u0646 <strong><em>u(x, y) <\/em><\/strong><strong><em>\u00a0<\/em><\/strong>\u0645\u062a\u063a\u06cc\u0631 \u0648\u0627\u0628\u0633\u062a\u0647\u200c\u0627\u06cc \u062f\u0631 \u06cc\u06a9 \u062f\u0627\u0645\u0646\u0647 \u0645\u0631\u0628\u0639\u06cc \u0634\u06a9\u0644 (\u0645\u062b\u0644\u0627\u064b \u062c\u0631\u06cc\u0627\u0646 \u062f\u0631 \u06cc\u06a9 \u062d\u0641\u0631\u0647) \u0645\u06cc\u200c\u0628\u0627\u0634\u062f (\u0634\u06a9\u0644-1)\u060c \u0628\u0627 \u062a\u0648\u0644\u06cc\u062f \u0634\u0628\u06a9\u0647 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a \u0631\u0648\u06cc \u062f\u0627\u0645\u0646\u0647 \u0641\u06cc\u0632\u06cc\u06a9\u06cc <strong><em>u(i\u0394x, j\u0394y)<\/em><\/strong> \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646<strong><em> u(x, y)<\/em><\/strong> \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062d\u0627\u06a9\u0645 \u0631\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0628\u0635\u0648\u0631\u062a \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc \u0632\u06cc\u0631 \u0646\u0648\u0634\u062a:<\/span><\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10827 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization.png\" alt=\"\u06af\u0633\u0633\u062a\u0647 \u0633\u0627\u0632\u06cc \u062f\u0631 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f\" width=\"1023\" height=\"431\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization.png 1023w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization-300x126.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization-768x324.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization-360x152.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/fdm-discretization-600x253.png 600w\" sizes=\"auto, (max-width: 1023px) 100vw, 1023px\" \/><\/p>\r\n<h5 style=\"text-align: center;\"><strong><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc58012114\"><\/a>\u0634\u06a9\u0644 -1: \u0646\u0645\u0648\u0646\u0647\u200c\u0627\u06cc \u0627\u0632 \u0634\u0628\u06a9\u0647 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/h5>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<h3 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc61605237\"><\/a><strong><span style=\"color: #800000;\">\u0639\u0645\u0644\u06af\u0631\u0647\u0627\u06cc \u0645\u0647\u0645 \u062f\u0631 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/span><\/h3>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u0627\u0634\u0627\u0631\u0647 \u0634\u062f\u060c \u06cc\u06a9\u06cc \u0627\u0632 \u062a\u0642\u0631\u06cc\u0628\u0647\u0627\u06cc \u062a\u0628\u062f\u06cc\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0628\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062c\u0628\u0631\u06cc\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0633\u0631\u06cc\u200c\u0647\u0627\u06cc \u062a\u06cc\u0644\u0648\u0631 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0641\u0631\u0645 \u06a9\u0644\u06cc \u0628\u0633\u0637 \u0633\u0631\u06cc \u062a\u06cc\u0644\u0648\u0631 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u062a\u0627\u0628\u0639 <strong><em>f(x)<\/em><\/strong> \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/span><\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10828 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series.png\" alt=\"\u0628\u0633\u0637 \u0633\u0631\u06cc \u062a\u06cc\u0644\u0648\u0631\" width=\"1036\" height=\"698\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series.png 1036w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-300x202.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1024x690.png 1024w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-768x517.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-360x243.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-600x404.png 600w\" sizes=\"auto, (max-width: 1036px) 100vw, 1036px\" \/><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u06af\u0631 \u0631\u0627\u0628\u0637\u0647 (3) \u0628\u0631\u0627\u06cc <strong><em>f\u2019(x<sub>0<\/sub>)<\/em><\/strong> \u062d\u0644 \u0634\u0648\u062f\u060c \u0645\u0639\u0627\u062f\u0644\u0647 (5) \u062d\u0627\u0635\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0645\u0639\u0627\u062f\u0644\u0647 (5) \u0647\u0645 \u0628\u0635\u0648\u0631\u062a \u0645\u0639\u0627\u062f\u0644\u0647 (6) \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f. \u0645\u0639\u0627\u062f\u0644\u0647 (6) \u0639\u0645\u0644\u06af\u0631<strong><em> \u067e\u06cc\u0634\u0631\u0648 \u0645\u0631\u062a\u0628\u0647 \u0627\u0648\u0644<\/em><\/strong> \u00a0(First Order Forward Difference (First Order Upwind)) \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. <strong><em>O(\u0394x)<\/em><\/strong> \u062e\u0637\u0627\u06cc \u0642\u0637\u0639 \u0645\u0631\u062a\u0628\u0647 \u0627\u0648\u0644 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u062f\u06cc\u0647\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0627 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0645\u0631\u0627\u062a\u0628 \u0628\u0627\u0644\u0627\u062a\u0631 \u062f\u0631 \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a\u060c \u0645\u0642\u062f\u0627\u0631 \u0627\u06cc\u0646 \u062e\u0637\u0627 \u0646\u06cc\u0632 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f. \u0627\u0632 \u0637\u0631\u0641 \u062f\u06cc\u06af\u0631 \u0628\u0627 \u06a9\u0627\u0647\u0634 \u0645\u0642\u062f\u0627\u0631 <strong><em>\u0394x<\/em><\/strong>\u060c \u0645\u0642\u062f\u0627\u0631 \u062e\u0637\u0627\u06cc \u0642\u0637\u0639 \u0646\u06cc\u0632 \u06a9\u0627\u0647\u0634 \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0628\u0637\u0648\u0631 \u0645\u0634\u0627\u0628\u0647\u060c \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644\u0647 (4) \u0647\u0645 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u0639\u0627\u062f\u0644\u0647 (7) \u0631\u0627 \u0645\u0646\u0638\u0648\u0631 \u0646\u0645\u0648\u062f. \u0645\u0639\u0627\u062f\u0644\u0647 (2-7) \u0639\u0645\u0644\u06af\u0631<em> <strong>\u067e\u0633\u0631\u0648 \u0645\u0631\u062a\u0628\u0647 \u0627\u0648\u0644<\/strong><\/em> (First Order Backward Difference (First Order Backwind)) \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062e\u0635\u0648\u0635\u06cc\u0627\u062a \u0631\u0641\u062a\u0627\u0631 \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u0627\u06cc\u0646 \u0646\u0648\u0639 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0646\u06cc\u0632 \u0647\u0645\u0627\u0646\u0646\u062f \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0645\u0631\u062a\u0628\u0647 \u0627\u0648\u0644 \u067e\u06cc\u0634\u0631\u0648 \u0627\u0633\u062a.<\/span><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0632 \u062f\u0648 \u0645\u0639\u0627\u062f\u0644\u0647 (2-3) \u0648 (2-4) \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 <strong><em>f\u2019(x<sub>0<\/sub>)<\/em><\/strong> \u0631\u0627 \u0628\u0635\u0648\u0631\u062a \u0645\u0639\u0627\u062f\u0644\u0627\u062a (8) \u06cc\u0627 (9) \u0646\u06cc\u0632 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0631\u062f. \u0645\u0639\u0627\u062f\u0644\u0647 (2-9)\u060c \u0639\u0645\u0644\u06af\u0631<em> <strong>\u0645\u0631\u06a9\u0632\u06cc \u0645\u0631\u062a\u0628\u0647 \u0627\u0648\u0644<\/strong><\/em> (First Order Central Difference) \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062e\u0637\u0627\u0647\u0627\u06cc \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc \u0627\u0632 \u0645\u0631\u062a\u0628\u0647 <strong><em><sup>2<\/sup><\/em><\/strong><strong><em>(<\/em><\/strong><strong><em>\u0394x<\/em><\/strong><strong><em>)<\/em><\/strong>\u00a0\u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0646\u06cc\u0632 \u0647\u0631 \u0686\u0647 \u0645\u0631\u062a\u0628\u0647 <strong><em>\u0394x<\/em><\/strong> \u0628\u0627\u0644\u0627\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u062e\u0637\u0627\u06cc \u062d\u0627\u0635\u0644\u0647 \u06a9\u0645\u062a\u0631 \u0645\u06cc \u0634\u0648\u062f. \u0627\u0632 \u0637\u0631\u0641\u06cc\u060c \u0628\u0627\u06cc\u062f \u062a\u0627 \u062d\u062f \u0645\u0645\u06a9\u0646 \u0628\u0647 \u062a\u0648\u0632\u06cc\u0639 \u062e\u0637\u0627\u06cc \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a (Uniform Error Distribution) \u062f\u0633\u062a \u06cc\u0627\u0641\u062a. \u062a\u0648\u0632\u06cc\u0639 \u062e\u0637\u0627\u06cc \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a \u0645\u0648\u062c\u0628 \u0647\u0645\u06af\u0631\u0627\u0626\u06cc \u0633\u0631\u06cc\u0639\u062a\u0631 \u0648 \u0645\u0634\u06a9\u0644\u0627\u062a \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u06a9\u0645\u062a\u0631 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f.<\/span><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0639\u0645\u0644\u06af\u0631 \u067e\u0633\u0631\u0648 \u06a9\u0627\u0631\u0628\u0631\u062f \u06a9\u0645\u062a\u0631\u06cc \u062f\u0631 \u062f\u06cc\u0646\u0627\u0645\u06cc\u06a9 \u0633\u06cc\u0627\u0644\u0627\u062a \u062f\u0627\u0631\u062f\u060c \u0686\u0631\u0627 \u06a9\u0647 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0627\u0632 \u067e\u0627\u06cc\u06cc\u0646 \u062f\u0633\u062a \u0628\u0647 \u0628\u0627\u0644\u0627 \u062f\u0633\u062a \u0645\u0646\u062a\u0642\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a\u06cc \u06a9\u0647 \u062a\u0627\u0628\u0639\u06cc \u0627\u0632 \u0632\u0645\u0627\u0646 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f\u060c \u0647\u0645\u06cc\u0634\u0647 \u062a\u0641\u0627\u0636\u0644 \u067e\u06cc\u0634\u0631\u0648 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f. \u062a\u0648\u062c\u0647 \u0634\u0648\u062f \u06a9\u0647 \u06cc\u06a9 \u0639\u0645\u0644\u06af\u0631 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u0639\u0627\u062f\u0644\u0647 \u0633\u06cc\u0633\u062a\u0645 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u062f\u0631 \u0645\u0639\u0627\u062f\u0644\u0647\u200c\u0627\u06cc \u062f\u06cc\u06af\u0631 \u0645\u0648\u062c\u0628 \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0633\u06cc\u0633\u062a\u0645 \u06af\u0631\u062f\u062f.<\/span><\/p>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<h3 style=\"text-align: right;\"><strong><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc61605238\"><\/a><span style=\"color: #800000;\">\u0628\u0633\u0637 \u0633\u0631\u06cc \u062a\u06cc\u0644\u0648\u0631 \u0628\u0631\u0627\u06cc \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u062f\u0631 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f\u00a0<\/span><\/span><\/strong><\/h3>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0647\u0645\u0627\u0646\u0646\u062f \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0647\u200c \u0627\u0648\u0644 \u0627\u0632 \u0631\u0648\u0634\u0647\u0627\u06cc \u062a\u0641\u0627\u0636\u0644 \u067e\u06cc\u0634\u0631\u0648\u060c \u067e\u0633\u0631\u0648 \u0648 \u0645\u0631\u06a9\u0632\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a (3) \u0648 (4)\u060c \u0639\u0628\u0627\u0631\u062a <strong><em>f\u2019\u2019(x<sub>0<\/sub>)<\/em><\/strong> \u0628\u0631 \u0627\u0633\u0627\u0633 \u0631\u0648\u0634\u0647\u0627\u06cc \u06cc\u0627\u062f \u0634\u062f\u0647 \u0628\u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc\u200c\u06af\u0631\u062f\u062f:<\/span><\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10830 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1.png\" alt=\"\u0628\u0633\u0637 \u0633\u0631\u06cc \u062a\u06cc\u0644\u0648\u0631-\u0645\u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631\" width=\"1036\" height=\"698\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1.png 1036w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1-300x202.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1-1024x690.png 1024w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1-768x517.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1-360x243.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/taylor-series-1-600x404.png 600w\" sizes=\"auto, (max-width: 1036px) 100vw, 1036px\" \/><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0645\u0639\u0627\u062f\u0644\u0627\u062a (10)\u060c (11) \u0648 (12) \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0639\u0645\u0644\u06af\u0631 \u067e\u06cc\u0634\u0631\u0648\u060c \u0639\u0645\u0644\u06af\u0631 \u067e\u0633\u0631\u0648 \u0648 \u0639\u0645\u0644\u06af\u0631 \u0645\u0631\u06a9\u0632\u06cc \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u0645\u0631\u062a\u0628\u0647 \u062f\u0648\u0645 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062c\u0632\u0626\u06cc\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0631\u062c\u0639 [1] \u062a\u0634\u0631\u06cc\u062d \u0634\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<h3 style=\"text-align: right;\"><span style=\"color: #000000;\"><a style=\"color: #000000;\" name=\"_Toc61605239\"><\/a><span style=\"color: #800000;\"><strong>\u0631\u0648\u0634\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d (Explicit) \u0648 \u0636\u0645\u0646\u06cc (Implicit)<\/strong><\/span><\/span><\/h3>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0627\u0635\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0631\u0627 \u0628\u0631\u0627\u06cc \u0647\u0631 \u06af\u0631\u0647 \u0634\u0628\u06a9\u0647 \u0628\u0637\u0648\u0631 \u0645\u062c\u0632\u0627 \u062d\u0644 \u06a9\u0631\u062f (\u0631\u0648\u0634 \u0635\u0631\u06cc\u062d) \u0648 \u06cc\u0627 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a\u060c \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u06a9\u0645 \u0628\u0631 \u062a\u0645\u0627\u0645 \u06af\u0631\u0647 \u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u0631\u0627 \u0628\u0637\u0648\u0631 \u0647\u0645\u0632\u0645\u0627\u0646 (\u0631\u0648\u0634 \u0636\u0645\u0646\u06cc) \u062d\u0644 \u0646\u0645\u0648\u062f. \u0645\u0639\u0627\u062f\u0644\u0627\u062a (13) \u0648 (14) \u06a9\u0647 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0645\u0639\u0627\u062f\u0644\u0647 \u0645\u0648\u062c \u0645\u0631\u062a\u0628\u0647 \u06cc\u06a9 \u0645\u06cc\u200c\u0628\u0627\u0634\u062f\u060c \u0628\u0647 \u062a\u0631\u062a\u06cc\u0628 \u0646\u0645\u0648\u0646\u0647\u200c\u0647\u0627\u06cc \u0633\u0627\u062f\u0647\u200c\u0627\u06cc \u0627\u0632 \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0631\u0648\u0634\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d \u0648 \u0636\u0645\u0646\u06cc \u0645\u06cc\u200c\u0628\u0627\u0634\u062f.<\/span><\/p>\r\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10833 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization.png\" alt=\"\u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u0635\u0631\u06cc\u062d \u0648 \u0636\u0645\u0646\u06cc\" width=\"1024\" height=\"204\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization.png 1024w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization-300x60.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization-768x153.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization-360x72.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Explicit-and-Implicit-discretization-600x120.png 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0627\u062a n \u0645\u0631\u062d\u0644\u0647 \u0632\u0645\u0627\u0646\u06cc <strong><em>(t=n\u0394t)<\/em><\/strong> \u0648 j \u0645\u0631\u062d\u0644\u0647 \u0645\u06a9\u0627\u0646\u06cc <strong><em>(x=j\u0394x)<\/em><\/strong> \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u0631\u0627\u0628\u0637\u0647 (13) \u0645\u0634\u062e\u0635 \u0627\u0633\u062a\u060c \u0627\u0644\u06af\u0648\u0631\u06cc\u062a\u0645 \u062d\u0644 \u0628\u0631\u0627\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0628\u0633\u06cc\u0627\u0631 \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0627\u0633\u062a. \u062a\u0646\u0647\u0627 \u06a9\u0645\u06cc\u062a \u0645\u062c\u0647\u0648\u0644 <strong><em>\u03d5<sup>n+1<\/sup><sub>j<\/sub><\/em><\/strong> \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0627\u0645\u0627 \u062f\u0631 \u0645\u0639\u0627\u062f\u0644\u0647 (14) \u0644\u0627\u0632\u0645\u0633\u062a \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0645\u06cc\u062a\u0647\u0627\u06cc \u0645\u062c\u0647\u0648\u0644 <strong><em>\u03d5<sup>n+1<\/sup><sub>j-1<\/sub><\/em><\/strong>\u060c <strong><em>\u03d5<sup>n+1<\/sup><sub>j<\/sub><\/em><\/strong> \u0648 <strong><em>\u03d5<sup>n+1<\/sup><sub>j+1<\/sub><\/em><\/strong> \u00a0\u06cc\u06a9 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0647 \u062d\u0644 \u0634\u0648\u062f. \u0631\u0648\u0634 \u0635\u0631\u06cc\u062d \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u0641\u0631\u0645 \u06a9\u0644\u06cc \u06cc\u06a9 \u0645\u0639\u0627\u062f\u0644\u0647 \u062e\u0637\u06cc <strong><em>ax=b<\/em><\/strong> \u0645\u06cc\u200c\u0628\u0627\u0634\u062f\u060c \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc\u06a9\u0647 \u062f\u0631 \u0631\u0648\u0634 \u0636\u0645\u0646\u06cc\u060c \u0641\u0631\u0645 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06af\u0627\u0647 <strong><em>[A]{x}=B<\/em><\/strong> \u0627\u0633\u062a. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0644\u0627\u0632\u0645\u0633\u062a \u06a9\u0647 \u0627\u06cc\u0646 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u0631 \u0647\u0631 \u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u06cc\u0627 \u062a\u06a9\u0631\u0627\u0631 \u062d\u0644 \u0634\u0648\u062f. \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u0628\u0631\u0627\u06cc \u062d\u0644 \u0627\u06cc\u0646 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u06a9\u0644\u0627\u064b \u0628\u0647 \u062f\u0648 \u0631\u0648\u0634 \u0645\u0633\u062a\u0642\u06cc\u0645 (Direct Method) \u0648 \u0631\u0648\u0634 \u062a\u06a9\u0631\u0627\u0631 (Iterative Method) \u062f\u0633\u062a\u0647\u200c\u0628\u0646\u062f\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f.\u00a0<\/span><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u0634\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d \u062a\u062d\u062a \u0634\u0631\u0627\u0626\u0637 \u062e\u0627\u0635\u06cc \u067e\u0627\u06cc\u062f\u0627\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u0634\u0631\u0648\u0639 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u06af\u0648\u0646\u0647\u200c\u0627\u06cc \u0627\u0633\u062a \u06a9\u0647 <strong><em>\u0394t<\/em><\/strong> \u0631\u0627 \u0628\u0647 <strong><em>\u0394x<\/em><\/strong> \u0631\u0628\u0637 \u0645\u06cc\u200c\u062f\u0647\u062f. \u062f\u0631 \u062d\u0627\u0644\u06cc\u06a9\u0647 \u0631\u0648\u0634\u0647\u0627\u06cc \u0636\u0645\u0646\u06cc \u0628\u0631\u0627\u06cc \u0627\u06a9\u062b\u0631 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u062e\u0635\u0648\u0635 \u0628\u0631\u0627\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062e\u0637\u06cc \u067e\u0627\u06cc\u062f\u0627\u0631 \u0628\u0648\u062f\u0647 \u0648 \u0645\u062d\u062f\u0648\u062f\u06cc\u062a\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 <strong><em>\u0394t<\/em><\/strong> \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f. \u0627\u0645\u0627 \u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0628\u06cc\u0634 \u0627\u0632 \u0627\u0646\u062f\u0627\u0632\u0647 \u0628\u0632\u0631\u06af<strong><em>\u0394t<\/em><\/strong> \u00a0\u0645\u0648\u062c\u0628 \u0627\u0632 \u062f\u0633\u062a \u0631\u0641\u062a\u0646 \u062c\u0632\u0626\u06cc\u0627\u062a (\u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0632\u0645\u0627\u0646\u06cc) \u062e\u0648\u0627\u0647\u062f \u0634\u062f. \u0628\u0637\u0648\u0631 \u062e\u0644\u0627\u0635\u0647 \u062a\u0641\u0627\u0648\u062a \u0645\u0627\u0647\u06cc\u062a \u0631\u0648\u0634\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d \u0648 \u0636\u0645\u0646\u06cc \u062f\u0631 \u062c\u062f\u0648\u0644 \u0632\u06cc\u0631 \u062f\u0631\u062c \u0634\u062f\u0647 \u0627\u0633\u062a.<\/span><\/p>\r\n<h5 style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0648\u06cc\u0698\u06af\u06cc\u0647\u0627\u06cc \u0631\u0648\u0634\u0647\u0627\u06cc \u0635\u0631\u06cc\u062d \u0648 \u0636\u0645\u0646\u06cc.<\/span><\/strong><\/h5>\r\n<table class=\" aligncenter\">\r\n<tbody>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><span style=\"color: #ff0000;\"><strong>\u062e\u0635\u0648\u0635\u06cc\u0627\u062a<\/strong><\/span><\/p>\r\n<\/td>\r\n<td style=\"text-align: center;\" width=\"170\">\r\n<p><span style=\"color: #ff0000;\"><strong>\u0631\u0648\u0634 \u0635\u0631\u06cc\u062d <\/strong><\/span><\/p>\r\n<\/td>\r\n<td style=\"text-align: center;\" width=\"174\">\r\n<p><span style=\"color: #ff0000;\"><strong>\u0631\u0648\u0634 \u0636\u0645\u0646\u06cc<\/strong><\/span><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0627\u0646\u062a\u0634\u0627\u0631 \u062e\u0637\u0627(Error Propagation)<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"170\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0633\u0631\u06cc\u0639<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0622\u0647\u0633\u062a\u0647 \u062f\u0631 \u0631\u0648\u0634\u0647\u0627\u06cc \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"170\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u062a\u0642\u0631\u06cc\u0628\u0627\u064b \u0646\u0627\u0645\u062d\u062f\u0648\u062f \u062f\u0631 \u0631\u0648\u0634\u0647\u0627\u06cc \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u06af\u0627\u0645 \u0632\u0645\u0627\u0646\u06cc \u06cc\u0627 \u06af\u0627\u0645 \u062a\u06a9\u0631\u0627\u0631<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"170\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u06a9\u0648\u0686\u06a9<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0628\u0632\u0631\u06af<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0645\u0639\u06a9\u0648\u0633 \u06a9\u0631\u062f\u0646(Inversion)<\/span><\/strong><\/p>\r\n<\/td>\r\n<td style=\"text-align: center;\" width=\"170\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0622\u0633\u0627\u0646<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0645\u0634\u06a9\u0644<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u062d\u0627\u0641\u0638\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"170\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u06a9\u0645<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0632\u06cc\u0627\u062f (\u0628\u0648\u06cc\u0698\u0647 \u062f\u0631 \u0645\u0633\u0627\u0626\u0644 \u0633\u0647 \u0628\u0639\u062f\u06cc)<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td width=\"193\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0647\u0632\u06cc\u0646\u0647<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"170\">\r\n<p><strong><span style=\"color: #000000;\">\u0628\u0627\u0644\u0627 \u0646\u0627\u0634\u06cc \u0627\u0632 \u0632\u0645\u0627\u0646 \u0645\u062d\u0627\u0633\u0628\u0627\u062a<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p><strong><span style=\"color: #000000;\">\u0628\u0627\u0644\u0627 \u0646\u0627\u0634\u06cc \u0627\u0632 \u062d\u0627\u0641\u0638\u0647 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<tr>\r\n<td style=\"text-align: center;\" width=\"193\">\r\n<p><strong><span style=\"color: #000000;\">\u062f\u0642\u062a<\/span><\/strong><\/p>\r\n<\/td>\r\n<td style=\"text-align: center;\" width=\"170\">\r\n<p><strong><span style=\"color: #000000;\">\u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0646\u0645\u0648\u062f \u06a9\u062f\u0627\u0645 \u0628\u0647\u062a\u0631 \u0627\u0633\u062a<\/span><\/strong><\/p>\r\n<\/td>\r\n<td width=\"174\">\r\n<p style=\"text-align: center;\"><strong><span style=\"color: #000000;\">\u0646\u0645\u06cc \u062a\u0648\u0627\u0646 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0646\u0645\u0648\u062f \u06a9\u062f\u0627\u0645 \u0628\u0647\u062a\u0631 \u0627\u0633\u062a<\/span><\/strong><\/p>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<p>&nbsp;<\/p>\r\n<h3 style=\"text-align: right;\"><strong><a name=\"_Toc61605240\"><\/a><span style=\"color: #800000;\">\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0631\u0648\u0634\u0647\u0627\u06cc \u0639\u062f\u062f\u06cc<\/span><\/strong><\/h3>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u062f\u0631 \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc\u060c \u0647\u0645\u0648\u0627\u0631\u0647 \u062f\u0648 \u062e\u0637\u0627\u06cc \u06af\u0631\u062f\u06a9\u0631\u062f\u0646 (\u0646\u0627\u0634\u06cc \u0627\u0632 \u06af\u0631\u062f \u06a9\u0631\u062f\u0646 \u062a\u0648\u0633\u0637 \u0631\u0627\u06cc\u0627\u0646\u0647) \u0648 \u062e\u0637\u0627\u06cc \u0642\u0637\u0639 (\u0646\u0627\u0634\u06cc \u0627\u0632 \u06af\u0633\u0633\u062a\u0647\u200c\u0633\u0627\u0632\u06cc) \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f. \u0627\u06af\u0631 \u062f\u0631 \u062d\u0644 \u0639\u062f\u062f\u06cc \u0627\u06cc\u0646\u06af\u0648\u0646\u0647 \u062e\u0637\u0627\u0647\u0627 \u06a9\u0646\u062a\u0631\u0644 \u0646\u0634\u0648\u062f\u060c \u0631\u0648\u0646\u062f \u062d\u0644 \u062f\u0686\u0627\u0631 \u0645\u0634\u06a9\u0644 \u0634\u062f\u0647 \u0648 \u0631\u0634\u062f \u062e\u0637\u0627 \u0628\u0627\u0639\u062b \u0646\u0627\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u062d\u0644 (\u0627\u0632 \u0646\u0648\u0639 \u0646\u0648\u0633\u0627\u0646\u06cc \u0648 \u06cc\u0627 \u0648\u0627\u06af\u0631\u0627\u06cc\u06cc) \u0645\u06cc\u200c\u06af\u0631\u062f\u062f. \u062f\u0627\u0634\u062a\u0646 \u0634\u0646\u0627\u062e\u062a \u06a9\u0627\u0641\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0645\u0627\u0647\u06cc\u062a \u0627\u06cc\u0646 \u062e\u0637\u0627\u0647\u0627 \u0648 \u0686\u06af\u0648\u0646\u06af\u06cc \u06a9\u0646\u062a\u0631\u0644 \u0622\u0646\u0647\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u0627\u0644\u06cc\u0632 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u062f\u0631 \u0647\u0645\u06af\u0631\u0627 \u0634\u062f\u0646 \u0631\u0648\u0646\u062f \u062d\u0644 \u0628\u0633\u06cc\u0627\u0631 \u0645\u0624\u062b\u0631 \u0627\u0633\u062a. \u067e\u06cc\u0634 \u0627\u0632 \u067e\u0631\u062f\u0627\u062e\u062a\u0646 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0628\u0647\u062a\u0631 \u0627\u0633\u062a \u0645\u0641\u0627\u0647\u06cc\u0645 \u0632\u06cc\u0631 \u0645\u0639\u0631\u0641\u06cc \u0634\u0648\u062f:<\/span><\/p>\r\n<ul style=\"text-align: right;\">\r\n<li><span style=\"color: #000000;\"><strong>\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc:<\/strong> \u0627\u06af\u0631 \u062e\u0637\u0627\u0647\u0627\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0631\u0634\u062f \u0646\u06a9\u0646\u062f\u060c \u0631\u0648\u0634 \u0639\u062f\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u067e\u0627\u06cc\u062f\u0627\u0631 \u0627\u0633\u062a.<\/span><\/li>\r\n<li><span style=\"color: #000000;\"><strong>\u0647\u0645\u06af\u0631\u0627\u06cc\u06cc:<\/strong> \u062f\u0631 \u0635\u0648\u0631\u062a\u06cc\u06a9\u0647 \u062e\u0637\u0627\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u062d\u0644 \u0639\u062f\u062f\u06cc \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u0633\u0645\u062a \u0635\u0641\u0631 \u0645\u06cc\u0644 \u06a9\u0646\u062f\u060c \u0631\u0648\u0634 \u0639\u062f\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u062f\u0647 \u0647\u0645\u06af\u0631\u0627 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.<\/span><\/li>\r\n<li><span style=\"color: #000000;\"><strong>\u0633\u0627\u0632\u06af\u0627\u0631\u06cc:<\/strong> \u0627\u06af\u0631 \u0627\u0646\u062f\u0627\u0632\u0647 \u0634\u0628\u06a9\u0647 \u0628\u0633\u0645\u062a \u0635\u0641\u0631 \u0645\u06cc\u0644 \u06a9\u0646\u062f\u060c \u0645\u0639\u0627\u062f\u0644\u0647 \u06af\u0633\u0633\u062a\u0647 \u0634\u062f\u0647 \u0628\u0633\u0645\u062a \u0645\u0639\u0627\u062f\u0644\u0647 \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u0645\u06cc\u0644 \u06a9\u0646\u062f\u060c \u0622\u0646\u06af\u0627\u0647 \u0634\u0631\u0637 \u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0628\u0631\u0642\u0631\u0627\u0631 \u062e\u0648\u0627\u0647\u062f \u0634\u062f. \u0647\u0631 \u0633\u06cc\u0633\u062a\u0645 \u06a9\u0647 \u067e\u0627\u06cc\u062f\u0627\u0631\u062a\u0631 \u0628\u0627\u0634\u062f\u060c \u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0622\u0646 \u0646\u06cc\u0632 \u0628\u06cc\u0634\u062a\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f.<\/span><\/li>\r\n<li><span style=\"color: #000000;\"><strong>\u0646\u0638\u0631\u06cc\u0647 \u0647\u0645 \u0627\u0631\u0632\u06cc \u0644\u0627\u06a9\u0633:<\/strong> \u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0628\u0631\u0627\u06cc \u0645\u0633\u0627\u0626\u0644\u06cc \u06a9\u0647 \u0634\u0631\u0627\u0626\u0637 \u0627\u0648\u0644\u06cc\u0647 \u0628\u062e\u0648\u0628\u06cc \u062a\u0639\u0631\u06cc\u0641 \u0634\u062f\u0647 \u0628\u0627\u0634\u062f\u060c \u0647\u0645\u06af\u0631\u0627\u06cc\u06cc \u0627\u06cc\u0646 \u0645\u0639\u0627\u062f\u0644\u0647 \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644\u06cc \u06a9\u0627\u0645\u0644\u0627\u064b \u0628\u0647 \u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0648 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0622\u0646 \u0645\u0631\u0628\u0648\u0637 \u0627\u0633\u062a.<\/span><\/li>\r\n<\/ul>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<h4 style=\"text-align: right;\"><span style=\"color: #ff0000;\"><strong>\u0622\u0646\u0627\u0644\u06cc\u0632 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u064f\u0646-\u0646\u06cc\u0648\u0645\u0646(Von Neumann Stability Analysis)<\/strong><\/span><\/h4>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u0631\u0648\u0634\u0647\u0627\u06cc \u0648\u0646-\u0646\u06cc\u0648\u0645\u0646 \u0648 \u0627\u063a\u062a\u0634\u0627\u0634 \u06af\u0633\u0633\u062a\u0647\u060c \u0645\u0647\u0645\u062a\u0631\u06cc\u0646 \u0631\u0648\u0634\u0647\u0627\u06cc \u0622\u0646\u0627\u0644\u06cc\u0632 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u0631\u0648\u0634\u0647\u0627\u06cc \u0641\u0631\u0645\u0648\u0644\u0627\u0633\u06cc\u0648\u0646 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u062a\u0646\u0647\u0627 \u0628\u0647 \u0631\u0648\u0634 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u0646 \u0646\u06cc\u0648\u0645\u0646 \u0645\u0648\u0631\u062f \u0627\u0634\u0627\u0631\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u062f\u0631 \u0631\u0648\u0634 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u0646-\u0646\u06cc\u0648\u0645\u0646\u060c \u0645\u0639\u0627\u062f\u0644\u0647 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0628\u0627 \u0633\u0631\u06cc \u0641\u0648\u0631\u06cc\u0647 \u0628\u0633\u0637 \u062f\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0628\u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u0627\u06af\u0631 \u0645\u0639\u0627\u062f\u0644\u0647 (15) \u062f\u0631 \u06cc\u06a9 \u062f\u0627\u0645\u0646\u0647 \u0646\u0627\u0645\u062a\u0646\u0647\u0627\u0647\u06cc \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0647 \u0634\u0648\u062f \u0622\u0646 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0628\u0633\u0637 \u0633\u0631\u06cc \u0641\u0648\u0631\u06cc\u0647 \u0628\u0635\u0648\u0631\u062a \u0631\u0627\u0628\u0637\u0647 (16) \u0628\u0627\u0632\u0646\u0648\u06cc\u0633\u06cc \u06a9\u0631\u062f:<\/span><\/p>\r\n<p style=\"text-align: right;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-10836 size-full\" src=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability.png\" alt=\"\u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u0646-\u0646\u06cc\u0648\u0645\u0646\" width=\"1021\" height=\"170\" srcset=\"https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability.png 1021w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability-300x50.png 300w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability-768x128.png 768w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability-360x60.png 360w, https:\/\/cfd-mrk.ir\/wp-content\/uploads\/2021\/03\/Von-Neumann-stability-600x100.png 600w\" sizes=\"auto, (max-width: 1021px) 100vw, 1021px\" \/><\/p>\r\n<p style=\"text-align: right;\"><span style=\"color: #000000;\">\u00a0\u06a9\u0647 <strong><em>G<\/em><\/strong> \u0636\u0631\u06cc\u0628 \u0631\u0634\u062f(Amplification Factor) \u06cc\u0627 \u0647\u0645\u0627\u0646 \u0645\u0642\u062f\u0627\u0631 \u062f\u0627\u0645\u0646\u0647 \u062f\u0631 \u0645\u0642\u0637\u0639 \u0632\u0645\u0627\u0646\u06cc \u0648 <em>p<\/em> \u0639\u062f\u062f \u0645\u0648\u062c (Wave Number) \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 <strong><em>x<\/em><\/strong> \u0645\u06cc\u200c\u0628\u0627\u0634\u062f. \u0628\u0627\u06cc\u062f \u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a \u06a9\u0647 \u0634\u0631\u0627\u0626\u0637 \u0639\u0645\u0648\u0645\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646\u0627\u0644\u06cc\u0632 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u0646-\u0646\u06cc\u0648\u0645\u0646 \u0627\u06cc\u0646\u0633\u062a \u06a9\u0647 \u0645\u0639\u0627\u062f\u0644\u0647 \u0645\u0648\u0631\u062f \u0645\u0637\u0627\u0644\u0639\u0647 \u06cc\u06a9 \u0645\u0639\u0627\u062f\u0644\u0647 \u062e\u0637\u06cc \u0628\u0627\u0634\u062f. \u0686\u0631\u0627\u06a9\u0647 \u062f\u0631 \u06cc\u06a9 \u0645\u0639\u0627\u062f\u0644\u0647 \u062e\u0637\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646 \u067e\u0627\u0633\u062e\u200c\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0631\u0627 \u0628\u0647 \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0627\u0641\u0632\u0648\u062f. \u0647\u0645\u0686\u0646\u06cc\u0646 \u062f\u0631 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062e\u0637\u06cc \u06a9\u0627\u0641\u06cc\u0633\u062a \u06a9\u0647 \u062a\u0646\u0647\u0627 \u06cc\u06a9 \u062a\u0631\u0645 \u0633\u0631\u06cc \u0641\u0648\u0631\u06cc\u0647 \u0628\u0631\u0631\u0633\u06cc \u0634\u0648\u062f. \u0628\u0637\u0648\u0631 \u06a9\u0644\u06cc\u060c \u0634\u0631\u0637 \u067e\u0627\u06cc\u062f\u0627\u0631\u06cc \u0648\u0646-\u0646\u06cc\u0648\u0645\u0646 \u0627\u06cc\u062c\u0627\u0628 \u0645\u06cc\u200c\u06a9\u0646\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u062f\u0627\u0645\u0646\u0647 \u0645\u062d\u062f\u0648\u062f <strong><em>\u03d5(x, t) \u0644\u0627\u0632\u0645\u0633\u062a<\/em><\/strong>\u00a0<strong><em>|G\u2264|1<\/em><\/strong> \u0628\u0627\u0634\u062f.<\/span><\/p>\r\n<p style=\"text-align: right;\">\u00a0<\/p>\r\n<p style=\"text-align: left;\"><span style=\"color: #000000;\"><strong>-[1]<\/strong><\/span><\/p>\r\n<p style=\"text-align: left;\"><span style=\"color: #000000;\"><strong>K. A. Hoffman AND S.T. Chaing, \u201cComputational Fluid Dynamics for Engineer\u201d, Volume 1, Engineering Education System, Wichita, Kansas, 1993<\/strong><\/span><\/p>\r\n<p>&nbsp;<\/p>\r\n\r\n<p class=\"has-text-align-right has-vivid-cyan-blue-color has-text-color wp-block-paragraph\" style=\"font-size: 18px;\"><strong><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/partial-differential-equation\/\">\u0628\u0627\u0632\u06af\u0634\u062a<\/a><\/strong><\/p>\r\n\r\n\r\n\r\n<p class=\"has-text-align-right has-vivid-red-color has-cyan-bluish-gray-background-color has-text-color has-background has-medium-font-size wp-block-paragraph\"><strong>\u0645\u0637\u0627\u0644\u0628 \u0645\u0631\u062a\u0628\u0637<\/strong><\/p>\r\n\r\n\r\n\r\n<h4 style=\"text-align: right;\"><span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/direct-and-iterative-methods\/\"><strong>\u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u062d\u0644 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0648 \u062a\u06a9\u0631\u0627\u0631\u06cc \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u0639\u0627\u062f\u0644\u0627\u062a<\/strong><\/a><\/span><\/h4>\r\n<h4 class=\"has-text-align-right has-black-color has-text-color\" style=\"text-align: right;\"><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/solving-hyperbolic-pdes-using-fdm\/\"><span style=\"color: #3366ff;\"><strong>\u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0645\u0634\u062a\u0642\u0627\u062a \u062c\u0632\u0626\u06cc \u0647\u0630\u0644\u0648\u0644\u0648\u06cc (\u0645\u0639\u0627\u062f\u0644\u0647 \u0645\u0648\u062c) \u0628\u0647 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/strong><\/span><\/a><\/h4>\r\n<h4 class=\"page-title\" style=\"text-align: right;\"><span style=\"color: #3366ff;\"><strong><a style=\"color: #3366ff;\" href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/solving-elliptic-pdes-using-fdm\/?preview=true\">\u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0628\u06cc\u0636\u0648\u06cc (\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0644\u0627\u067e\u0644\u0627\u0633 \u0648 \u067e\u0648\u0622\u0633\u0648\u0646) \u0628\u0647 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/a><\/strong><\/span><\/h4>\r\n<h4 class=\"page-title\" style=\"text-align: right;\"><a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/solving-parabolic-pdes-using-fdm\/\"><strong><span style=\"color: #3366ff;\">\u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0633\u0647\u0645\u0648\u06cc (\u0645\u0639\u0627\u062f\u0644\u0627\u062a \u0627\u0646\u062a\u0642\u0627\u0644 \u06af\u0631\u0645\u0627) \u0628\u0647 \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f<\/span><\/strong><\/a><\/h4>\r\n<h4 class=\"has-text-align-left has-cyan-bluish-gray-color has-text-color\" style=\"font-size: 18px; text-align: left;\"><span style=\"color: #999999;\"><a style=\"color: #999999;\" 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><\/span><\/h4>\r\n<h5 style=\"text-align: left;\"><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"http:\/\/ae.sharif.edu\/~portal\/faculty\/2084842152\"><em><strong>\u062f\u06a9\u062a\u0631 \u0645\u062d\u0645\u062f \u0637\u06cc\u0628\u06cc \u0631\u0647\u0646\u06cc<\/strong><\/em><\/a><\/span><\/h5>\r\n\r\n\r\n\r\n<h5 class=\"has-text-align-left has-text-color\" style=\"color: #000fa3; text-align: left;\"><span style=\"color: #0000ff;\"><strong><em><a style=\"color: #0000ff;\" 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><\/span><\/h5>\r\n\r\n\r\n\r\n<p class=\"has-text-align-left wp-block-paragraph\"><a href=\"http:\/\/www.multiphysics.us\/FDM.html\"><strong>http:\/\/www.multiphysics.us\/FDM.html<\/strong><\/a><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f Finite Difference Method \u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u062f\u0631 \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0628\u0631\u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647 \u0648 \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0631\u0648\u06cc \u06af\u0631\u0647\u200c\u0647\u0627\u06cc \u0634\u0628\u06a9\u0647 \u062a\u0648\u0633\u0639\u0647 \u06cc\u0627\u0641\u062a\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646\u06a9\u0627\u0631 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u0628\u06a9\u0647\u200c\u0628\u0646\u062f\u06cc \u0648 \u0627\u0639\u0645\u0627\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062d\u0627\u06a9\u0645 \u0631\u0648\u06cc \u0647\u0631 \u06cc\u06a9 \u0627\u0632 \u06af\u0631\u0647\u200c\u0647\u0627\u06cc&hellip;&nbsp;<a href=\"https:\/\/cfd-mrk.ir\/index.php\/training\/flow-analysis\/fundamentals-of-cfd\/partial-differential-equation\/finite-difference-method\/\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":10846,"parent":10401,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10820","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f - cfd-mrk<\/title>\n<meta name=\"description\" content=\"\u0631\u0648\u0634 \u062a\u0641\u0627\u0636\u0644 \u0645\u062d\u062f\u0648\u062f \u062f\u0631 \u062d\u0644 \u0645\u0639\u0627\u062f\u0644\u0627\u062a \u062f\u06cc\u0641\u0631\u0627\u0646\u0633\u06cc\u0644 \u062c\u0632\u0626\u06cc \u0628\u0631\u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647 \u0648 \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0631\u0648\u064a 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