汽车前端模块冷却进气分析与优化

Analysis and Optimization for Cooling Air of Front Cooling Module of a Vehicle

为了平衡汽车的冷却性能与气动性能,需要优化前端模块冷却进气。该文对某款车型的前端模块冷却进气问题提出了3种优化方案,采用参数化三维仿真分析研究了优化效果并综合整改,通过油泥模型风洞试验进行了效果验证,结果显示,三维仿真得到的换热器前测点平均风速与试验实测值的误差小于5%,满足工程分析要求。通过综合优化方案整改,机舱冷却进气得到优化,气动阻力降低。

In order to balance the cooling performance and aerodynamic performance of automobiles, it is necessary to optimize the cooling intake of the front-end module. Three optimization schemes are proposed for the cooling intake of the front-end module of a vehicle. The optimization effect is analyzed by parametric 3 D simulation analysis and the final comprehensive optimization scheme is realized. The effect is verified by the wind tunnel test of clay model. The results show that the error between the simulation results and experimental results is less than 5%, which meets the requirements of engineering analysis.Through the modification of the comprehensive optimization scheme, the cooling air intake of the engine room is optimized and the aerodynamic resistance is reduced.