DES模型在类车体外流场计算中的对比研究  

A Comparative Study on DES Models in Simulating Flow Field Around Ahmed Body

作　　者：朱晖[1] 杨志刚[1] 

机构地区：[1]同济大学上海地面交通工具风洞中心,上海201804

出　　处：《汽车工程》2008年第9期796-799,815,共5页Automotive Engineering

摘　　要：采用3种DES模型,对25°倾角的类车体进行非稳态数值计算。通过与测量图谱和实验数据进行比较,在验证计算有效性和准确性的同时,比较了3种DES模型各自的特点,并得到相应结论。Three detached eddy simulation （DES） models are adopted for conducting non-steady numerical calculation on an Ahmed body with a rear slant angle of 25°. By comparing the results with measured data and plots, the respective features of three DES models are compared and corresponding conclusion is drown while the effectiveness and accuracy of the calculation are verified.

关 键 词：分离涡模型 类车体 计算流体力学 

分 类 号：U461.1[机械工程—车辆工程]