CFD在轿车造型设计上的应用  

Application of CFD in Automobile Model

作　　者：贾海庆[1] 王成玲[2] 

机构地区：[1]北京航空航天大学国家计算流体力学实验室,北京100083 [2]中国北方车辆研究所,北京100072

出　　处：《汽车科技》2008年第2期29-31,共3页Auto Sci-Tech

摘　　要：对某轿车进行了数值模拟,分析了扰流板对整车流场结构和尾流场涡系结构的影响,成功地模拟了气流分离和拖拽涡现象。车身后部的速度矢量图,较清楚地显示了轿车后部尾涡的形成及演变过程,揭示了尾涡特性对空气阻力的影响,研究结果对改进车型,减小尾涡,降低空气阻力有一定的指导作用。In this paper, numerical simulation of a car was done. The influence of spoiler on the structure of whole outer flow-field and trailing vortices was analyzed. The vector plots of velocity fields were presented. Formation and deformation of the wake structure could be clearly observed. The influence of wake on the aerodynamic drag was revealed. This could improve the car body and reduce the wake and the aerodynamic drag.

关 键 词：扰流板 尾流结构 气动阻力 轿车 

分 类 号：U461.1[机械工程—车辆工程]