FLUENT培训教材05湍流模型.ppt

节选段落一：
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ANSYS FLUENT 培训教材
第五节：湍流模型
安世亚太科技（北京）有限公司
A Pera Global Company © PERA China
湍流模型简介
湍流的特征
从NS方程到雷诺平均NS模型（RANS）
雷诺应力和封闭问题
湍动能方程（k）
涡粘模型 (EVM)
雷诺应力模型
近壁面处理及网格要求
进口边界条件
总结: 湍流模型指南
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湍流的特征
湍流本质是非稳态的、三维的、非周期的漩涡运动（脉动）的，湍流会加强混合


节选段落二：
Fluent Inc. offers several state-of-the-art turbulence modeling options that provide the accuracy that engineers need at reasonable computational expense. These turbulence models include the two-equation and RSM models.


节选段落三：
We have described the turbulence models and near-wall treatments available in Fluent CFD software and have tried to show how successful modeling of turbulent flows requires engineering judgement.