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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Reynolds stress equation model ： ウィキペディア英語版 Reynolds stress equation model Reynolds stress equation model (RSM), also known as second order or second moment closure model is the most complex classical turbulence model. Several shortcomings of k-epsilon turbulence model were observed when it was attempted to predict flows with complex strain fields or substantial body forces. Under those conditions the individual Reynolds stresses were not found to be accurate while using formula $-\backslash rho\; u\_^\backslash prime\; u\_^\backslash prime$ = $\backslash mu\; t\backslash left\; (\backslash frac\}+\backslash frac\}\backslash right\; )-\backslash frac\backslash rho\; k\backslash delta\_$ = $2\; \backslash mu\; t\; E\_-\backslash frac\backslash rho\; k\; \backslash delta\_$ The equation for the transport of kinematic Reynolds stress $R\_=u\_^\backslash prime\; u\_^\backslash prime=-\backslash tau\; \_/\backslash rho$ is 〔 〕 $\backslash frac\; =\; D\_+\; P\_+\; \backslash Pi\_+\; \backslash Omega\_-\; \backslash varepsilon\_$ Rate of change of $R\_$ + Transport of $R\_$ by convection = Transport of $R\_$ by diffusion + Rate of production of $R\_$ + Transport of $R\_$ due to turbulent pressure-strain interactions + Transport of $R\_$ due to rotation + Rate of dissipation of $R\_$. The six partial differential equations above represent six independent Reynolds stresses. The models that we need to solve the above equation are derived from the work of Launder, Rodi and Reece (1975). == Production term == The Production term that is used in CFD computations with Reynolds stress transport equations is $P\_$ =$-\backslash left\; (R\_\backslash frac\}+R\_\backslash frac\}\backslash right\; )$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Reynolds stress equation model」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.