基于CFX的地铁车头外流场数值模拟

Simulated Calculation of Flow Distribution around Metro Head Based on CFX

提出了地铁列车车头外流场的计算模型,并运用列车空气动力学原理借助流体分析软件CFX对计算模型进行了仿真计算,根据计算结果分析比较了各模型的外流场、压力场的分布,得出了具有良好气动性能的车头外形设计参数,为地铁列车外形设计提供了理论基础。

This paper proposes a arithmetic model of flow distribution around metro head,calculates and analyzes distribution of air flow around metro head based on aerodynamics of train and CFX.According to the result,the differences of the distribution of flow field and pressure field among these models are analyzed and compared and the proper parameters of contour design of train head are achieved,which provides theoretical foundation for the design of metro train contour design.