地铁列车与高速铁路列车交会压力波的仿真研究  

Simulation of Train Intersection Pressure Pulse between Highspeed Railway and Metro Vehicles

作　　者：熊骏[1] 张继业[1] 李田[1] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都硕士研究生610031

出　　处：《城市轨道交通研究》2015年第12期99-103,共5页Urban Mass Transit

摘　　要：列车在高速会车时产生的空气压力波会给交会车辆的侧窗造成很大的冲击,有可能出现破窗事故,给乘客和列车运行带来安全隐患。基于三维、非定常两方程湍流模型,利用计算流体软件Fluent,对某型地铁车辆与不同型号的铁路高速列车(CRH380A、CRH2、CRH3型)交会时的空气动力学性能进行了数值仿真,得到侧窗上的会车压力波变化曲线。仿真计算结果表明:在地铁列车与铁路高速列车的交会过程中,地铁列车所受到的侧力远大于高速铁路列车所受到的侧力,交会产生的瞬变压力波对地铁列车侧窗的影响也更大。当地铁列车与CRH380A型高速列车交会时,与其和其它两种型号的列车交会相比,地铁列车侧窗所受到的压力波幅值最小,而当地铁列车与CRH2型铁路列车或CRH3型铁路列车交会时,地铁列车侧窗所受到的压力波幅值均较大,其波动的峰峰值也更大。Air pressure pulse generated by high-speed train intersection will cause a magnificent impact on train side win- dows, which could result in window breaking accident and render passengers and vehicles in hidden dangers. Based on a 3D unsteady compressible N-S equations and turbulence mod- eland by using CFD software FLUENT, the dynamic proces- ses of different high-speed trains （CRH380A, CRH2, CRH3） at intersection with metro vehicles are simulated, the pressure pulse change profiles on side windows are recorded. The calculation of simulation shows that the lateral force is larger on metro vehicle than on high-speed trains, and the transient pressure pulse on metro side windows is even grea- ter. The pressure pulse peak on metro vehicle side windows when a CRH2 or a CRH3train passed by is bigger than that of a CRH380A, the variation of pressure pulse peaks is also more magnificent.

关 键 词：地铁列车 高速铁路列车 会车压力波 

分 类 号：U298[交通运输工程—交通运输规划与管理] U270.1[交通运输工程—道路与铁道工程]