流体仿真平台对汽车外流场仿真能力的对比研究  

A Comparative Study on the Simulation Capability of Fluid Simulation Platforms on Exterior Flow Field Around Vehicle

作　　者：朱晖[1] 杨志刚[1] 谭鹏[2] 丰成杰 

机构地区：[1]同济大学,上海地面交通工具风洞中心,上海201804 [2]湖南大学,汽车车身先进设计制造国家重点实验室,长沙410082

出　　处：《汽车工程》2016年第2期163-167,199,共6页Automotive Engineering

基　　金：国家973计划项目(2011CB711203);上海市地面交通工具风洞专业技术服务平台项目(14DZ2291400)资助

摘　　要：基于同一个硬件平台和相关的参数设置,采用Fluent 12.1和Star-ccm+8.04流体仿真平台对某车身的1/3缩比模型外部绕流场进行数值仿真。以相同模型的风洞实验数据为准,通过计算获得气动升/阻力、车身表面压力和尾迹区流场结构等相关信息,对比研究了两款流体仿真平台对汽车外流场的仿真能力,为流体仿真平台的选择提供了依据。Based on the same hardware platform and corresponding parameters setting,two fluid simulation platforms,Fluent 12. 1 and Star-ccm ＋ 8. 04 are adopted to conduct numerical simulation on the flow field around the 1∶ 3 scaled model of a vehicle body. With wind tunnel test data as the base,the simulation capability of two simulation platforms about flow field around vehicle are comparatively studied in terms of aerodynamic drag,aerodynamic lift,surface pressure distribution and wake structure etc. The study provides a basis for the selection of fluid simulation platforms.

关 键 词：汽车外流场 流体仿真平台 仿真能力 

分 类 号：U461.1[机械工程—车辆工程]