汽车车轮扰流板降阻效果数值模拟分析  

Numerical Simulation Analysis on Drag Reduction of Vehicle Wheel Spoiler

作　　者：付宇 

机构地区：[1]中国第一汽车股份有限公司天津技术开发分公司

出　　处：《汽车工程师》2018年第7期37-39,共3页Automotive Engineer

摘　　要：为更好地控制车轮附近流场状态,降低汽车气动阻力。该文应用计算流体力学方法,模拟了汽车模型添加前后车轮扰流板后气流分布状态,评估出前后车轮扰流板的降阻效果及其耦合关系。结果表明添加前轮扰流板后,风阻系数下降了6%,其降阻效果明显优于后车轮扰流板,且前后车轮扰流板具有一定的耦合作用,为车轮扰流板的设计提供了理论指导。To control the flow field state around the wheel and reduce the aerodynamic drag of the whole vehicle, in this paper,the flow distribution state is simulated using CFD by adding the front and rear wheel spoiler, the drag reduction effect and coupling relationship of front and rear wheel spoiler is evaluated. The results showed that the drag coefficient was decreased by6% after adding the front wheel spoiler, and its drag reduction effect was much better than that of the rear wheel spoiler, and the spoiler of front and rear wheels had a certain coupling effect, it provided theoretical guidance for the design of the wheel spoiler.

关 键 词：汽车车轮 扰流板 风阻系数 计算流体力学 

分 类 号：U461.1[机械工程—车辆工程] U463.34[交通运输工程—载运工具运用工程]