流水槽对客车风阻影响的仿真及试验

Simulation and Experiment on Influence of Rain Gutter on Wind Resistance to Coaches

基于某中型发动机后置客车,建立整车的仿真模型分析流水槽导致整车风阻增加的流动机理,在此基础上提出圆弧型流水槽结构,并通过仿真和整车等速油耗试验进行验证。

Based on a medium coach with rear-mounted engine,the authors establish the vehicle simulation model to analyze the flow mechanism that the rain gutter causes the increase of the vehicle wind resistance.On the basis,they propose the structure of an arc-shaped rain gutter,which is verified by the vehicle simulation and the constant speed fuel consumption test.