文章基本信息

标题：A Modified k-ε Model for Computation of Flows with Large Streamline Curvature:
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作者：Jun-Lian Yin ; De-Zhong Wang ; Yu-Lin Wu 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2013
卷号：5
页码：1-10
DOI：10.1155/2013/592420
语种：English
出版社：Sage Publications Ltd.
摘要：This paper presents an improved method for inclusion of system rotation and streamline curvature effects into existing two-equation eddy-viscosity turbulence models. A new formulation for calculation of the turbulence viscosity coefficient, which is implemented into the traditional k-ε model with a two-layer near-wall treatment in a commercial computational fluid dynamics solver, is proposed. In contrast to precious model, the modified rotation rate which appears in the formulation for turbulent viscosity coefficient is herein expressed exactly and universally. Thus, it provides an effective alternative for turbulence modeling.