采用不同低雷诺数k-ε湍流模型模拟室内空气流动的研究  

A Comparison of Numerical Simulation of Indoor Airflow Using Different Low-Reynolds-Number k-ε Turbulence Models

作　　者：李勋栋[1] 邓保庆[1] 陆丽[1] 王静[1] 

机构地区：[1]上海理工大学环境与建筑学院,上海市200093

出　　处：《曲阜师范大学学报（自然科学版）》2012年第1期59-62,共4页Journal of Qufu Normal University(Natural Science)

基　　金：上海市研究生创新基金项目(JWCXSL1022);上海市教育委员会科研创新项目(10YZ95)

摘　　要：采用4种不同低雷诺数k-ε湍流模型,包括Abid模型、Launder-Sharma模型、Abe-Kondoh-Nagano模型和Chang-Hsieh-Chen模型,对矩形房间内空气流动的速度特性和湍流强度进行了数值研究.数值计算结果与实验数据吻合较好,4种低雷诺数k-ε湍流模型均能模拟室内空气的流动特性,其中Launder-Sharma k-ε模型能更好的预测速度特性,而其他3种模型能较好的预测湍流强度.The aim of this work is to investigate velocity characteristics and turbulent intensity of the airflow inside a rectangular room. Four low-Reynolds κ-ε models developed by Abid, Launder and Sharma, Abe et al, and Chang et al. were used to describe the turbulent characteristics, respectively. The results indicated that the main features of the mean flow were captured well by all the four turbulence models. However, the Launder-Sharma κ-ε model performed better in the prediction of the velocity characteristics while the other three turbulence models performed better in the prediction of turbulent intensity.

关 键 词：低雷诺数 湍流模型 室内空气流动 数值模拟 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]