汽车工程学报2024，Vol.14Issue(1)：94-100,7.DOI:10.3969/j.issn.2095‒1469.2024.01.09
镂空式车顶扰流板关键参数对两厢车空气阻力的影响
Influence of Hollow Roof Spoilers on the Aerodynamic Drag of Hatchback Vehicles
摘要
Abstract
The hollow roof spoiler has become a new trend in automotive styling design,significantly impacting the vehicle's aerodynamic performance.To study the influence of the spoiler parameters on aerodynamic drag coefficient,CFD simulations were conducted to analyze cases with different spoiler angles,passage sizes,and D-pillar spoilers based on a BYD hatchback model with a hollow roof spoiler.The simulation results agree well with wind tunnel experiment results.It is found that the volume of the upper tail flow increases with a decrease in the spoiler angle,a reduction in the passage size or the addition of a D-pillar spoiler.A lower drag coefficient is obtained when the upper tail flow more effectively matches with the lower tail flow.The findings of this paper are valuable for guiding future designs of hollow roof spoilers.关键词
汽车/镂空式车顶扰流板/空气动力学/风洞试验/DES湍流模型Key words
vehicle/hollow roof spoiler/aerodynamic/wind tunnel test/DES turbulence model分类
交通工程引用本文复制引用
朱智成,张晓涵,罗秋丽,张风利,王文江..镂空式车顶扰流板关键参数对两厢车空气阻力的影响[J].汽车工程学报,2024,14(1):94-100,7.基金项目
国家重点研发计划项目(2022YFE0208000,2021YFB2501705) （2022YFE0208000,2021YFB2501705）
广东省基础与应用研究基金(2019A1515111005) （2019A1515111005）
