基于外流场分析的汽车车身空气动力学性能改进  

Improvement of Aerodynamic Performance for a Vehicle Body Based on External Flow Field Analysis

作　　者：夏小均 赖诗洋 丁良旭[1] 陈德兵[1] 何大军[1] Xia Xiaojun;Lai Shiyang;Ding Liangxu;Chen Debing;He Dajun(Chongqing Vehiele Test ＆ Researeh Institute,National Bus Quality Supervision ＆ Inspeetlon Center,Chongqlng 401122,China;Sehool of Meehanleal Engineering,Chongqlng Voeatlonal Institute of Engineering,Chongqing 402260,China)

机构地区：[1]重庆车辆检测研究院国家客车质量监督检验中心,重庆401122 [2]重庆工程职业技术学院机械工程学院,重庆402260

出　　处：《客车技术与研究》2018年第5期5-7,14,共4页Bus & Coach Technology and Research

基　　金：重庆车辆检测研究院科技发展基金项目(17AKC21)

摘　　要：对某汽车车身外流场进行仿真分析,针对其存在向上空气升力的问题,提出尾部增加扰流板的改进方案,并对改进方案进行仿真分析。结果表明,改进后的汽车空气动力学性能得到改善。The authors simulate and analyze the external flow field of a vehicle body. According to the problem of upward pneumatic lift existed on the vehicle body,they put forward a improving scheme of adding the rear spoiler at the vehicle body tail and simulate and analyze the improved scheme. The results show that the aerodynamic performance of the improved vehicle gets improvement.

关 键 词：外流场 空气升力 扰流板 空气动力学性能 

分 类 号：U461.1[机械工程—车辆工程]