摘要
随着地铁列车的速度不断提高,其空气动力性能也显得越来越重要。提出并建立地铁列车车头外流场计算模型,运用列车空气动力学原理并借助流体分析软件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,得出具有良好气动性能的车头外形设计参数,可供地铁列车外形设计作参考。
With the increase of metro train speed, the aerodynamic characters of metro train have become more and more important. In this paper an aerodynamic model for metro train is built, the distribution of air flow on the train head is calculated an analyzed based on aerodynamics principle and software CFX. According to the result, the different distributions of air flow in the outfield and the pressure field are analyzed and compared, proper parameters of contour design of streamlined train head are obtained, which will provide theoretical foundation for the development of metro train contour design. Key words metro train; train-head air flow distribution; numerical simulation; aerodynamic characteristics
出处
《城市轨道交通研究》
北大核心
2012年第3期34-37,共4页
Urban Mass Transit
关键词
地铁列车
车头外流场
数值仿真
气动性能
metro train
train-head air flow distribution
numerical simulation
aerodynamic characteristics
