高速列车交会压力波与车速关系的模拟研究

Numerical Simulation of Relationship between Crossing Pressure Pulse and Speed when High Speed Trains Crossing

以CRH2型高速列车为例进行交会压力波与车速关系的数值模拟研究。模拟计算中使用的划分网格软件为ICEM CFD,计算流体力学软件为CFdesign,数学计算模型为k-ε湍流方程。依靠动网格技术模拟高速列车的动态交会过程,并利用运算结果分析交会压力波的产生机理及交会压力波与会车速度间的数值关系。

CRH2 was taken as the example in this simulation study.In the numerical calculation,grid software was ICEM CFD,computational fluid dynamics software was Cfdesign,mathematical model was k-ε equation.CFdesign simulates the dynamic crossing of two trains with moving grid technique.Calculations were used to analyze the generation mechanism of crossing pressure pulse,and the numerical elationship between train speed and cross pressure pulse is found out.