文献类型：期刊文献

中文题名：五种低雷诺数κ-ε模型的考核

英文题名：A Comparison of Five Low Reynolds Number κ-ε Models

作者：袁世伟[1];赖焕新[1]

机构：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237

年份：2014

卷号：35

期号：6

起止页码：1091

中文期刊名：工程热物理学报

外文期刊名：Journal of Engineering Thermophysics

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(No.51176048)

语种：中文

中文关键词：低雷诺数模型;湍流模型比较;数值模拟

外文关键词：low Reynolds number k-e models;;comparison of turbulence models;;numerical simulation

摘要：低雷诺数k-ε模型适用于从湍流旺盛区到固体壁面的全范围,比标准k-ε模型的适用范围更宽。本文采用经典算例,对五种低雷诺数k-ε模型进行数值计算考核.计算结果表明在选取的算例中,NH模型的预测能力略优于其它模型;而标准k-ε模型则虽比大多数低雷诺数模型的计算量小,但对分离流动的预测能力较差。
Low Reynolds number k-ε models are applicable in the whole range from fully turbulent flow zone to the walls;their applicable range is wider than the standard k-ε model.In this paper,three turbulent flows with benchmark experimental data were selected for validation and comparison between five low Reynolds number k-ε models.The standard k-ε model was also included for comparison.The numerical results showed that in these models,the NH model was able to obtain better agreements with experiments than other four low Reynolds models.The standard k-ε model,however,obtained worse agreement for separated flows at less computational costs,as compared with low Reynolds k-ε models.