摘要
在汽车主造型冻结后,进一步改善整车风阻特性的主要途径是在车底增加气动附件。本文中运用计算流体动力学仿真和试验技术分析了某SUV车型在车底不同状态下的风阻特性。结果表明,车底布置气动附件不但能降低整车的气动阻力系数,而且能降低整车高速行驶时的升力。另外,文中还通过试验数据分析,研究了SUV车型在来流风速为120km/h时的气动六分力特性。
The main approach to the further improvement of vehicle aerodynamic drag characteristic after vehicle styling is frozen is adding aerodynamic accessories on underbody. In this paper, the drag characteristics of a SUV with different aerodynamic accessories are analyzed by both CFD simulation and experiments. The results show that the aerodynamic accessories on underbody can not only reduce the aerodynamic drag of vehicle, but also lower the lift force in high speed driving. In addition, the six-component aerodynamic characteristics of a SUV under a wind velocity of 120km/h are also studied by analyzing test data.
出处
《汽车工程》
EI
CSCD
北大核心
2016年第4期511-514,499,共5页
Automotive Engineering
关键词
SUV
气动附件
气动特性
SUV
aerodynamic accessories
aerodynamic characteristics
