汽车工程 ›› 2025, Vol. 47 ›› Issue (7): 1415-1424.doi: 10.19562/j.chinasae.qcgc.2025.07.018

• • 上一篇    

全尺寸汽车风洞天平附加升力修正影响研究

彭超1,补涵1,王庆洋1(),张倩文1,杨洁1,Lian Gan2   

  1. 1.中国汽车工程研究院股份有限公司风洞中心,重庆 401122
    2.Department of Engineering,Durham University,Durham DH1 3LE
  • 收稿日期:2024-07-14 修回日期:2025-02-19 出版日期:2025-07-25 发布日期:2025-07-18
  • 通讯作者: 王庆洋 E-mail:wangqingyang@caeri.com.cn
  • 基金资助:
    国家重点研发计划(2022YFE0208000);重庆市自然科学基金(2023NSCQ-BSX0063)

Correction Study of Balance Additional Lift in Full-Scale Vehicle Wind Tunnel

Chao Peng1,Han Bu1,Qingyang Wang1(),Qianwen Zhang1,Jie Yang1,Gan Lian2   

  1. 1.Wind Tunnel Central,China Automotive Engineering Research Institute Co. ,Ltd. ,Chongqing 401122
    2.Department of Engineering,Durham University,Durham DH1 3LE,United Kingdom
  • Received:2024-07-14 Revised:2025-02-19 Online:2025-07-25 Published:2025-07-18
  • Contact: Qingyang Wang E-mail:wangqingyang@caeri.com.cn

摘要:

以CAERI Aero Model模型车辆为研究对象,研究了全尺寸汽车风洞测试过程中天平车轮移动带产生的附加升力,运用风洞试验与数值仿真的方法获取前后车轮移动带表面的压力数据与流场数据,分析了附加升力修正的影响因素与差异来源。研究表明,风洞测试过程中,轮胎旋转、轮胎尺寸对附加升力修正有较为明显的影响。同时,模型测试位置是影响附加升力修正的重要因素,轮胎相对车轮移动带位置改变时,对前后轮附加升力修正最大可造成26、14个counts的影响。

关键词: 汽车空气动力学, 风洞试验, 车轮移动带, 数值仿真, 附加升力

Abstract:

Based on the CAERI Aero Model vehicle, the additional lift generated by wheel driving units (WDU) in the process of vehicle wind tunnel test is studied. The pressure data and flow field data of the front and rear WDU surface are obtained by wind tunnel test and numerical simulation, and the influencing factors and differences of the additional lift correction are analyzed. The results indicate that tire rotation and tire size have obvious influence on additional lift during wind tunnel test. At the same time, the test position of the model is an important factor affecting the additional lift correction. When the position of the tire relative to WDU changes, the maximum influence on the additional lift correction of the front and rear wheel is 26 and 14 counts respectively.

Key words: automotive aerodynamics, wind tunnel test, wheel drive units, numerical simulation, additional lift