高速列车进入隧道空气动力学模型实验分析

高速列车在进出隧道时,会产生一系列气动效应,引起噪声及车厢内压力变化,对乘客及环境造成损害.实验测试和数值模拟是研究这一问题的有效方法.本文利用这两种方法对高速列车在进入隧道过程中,压力的变化情况进行了计算和测试.从得到的结果可以看出,它们能够起到相互补充,互相印证的目的.通过对结果的分析,也得出压力波产生、变化的一些规律.

Model experiment and numeral simulation of the aerodynamics character of high-speed train entering tunnel

When high-speed train entering and exiting from tunnel, a series of aerodynamic effects are created, such as pressure variation in carriage, noises, which are harm to passengers and environment. Model experiment and numeral simulation are efficient methods to research these problems. In this paper, using these two methods, the pressure variation at tunnel measurement points are researched when train entering tunnel. From the results, it can be seen that their results matched well and can validate for each other and the pressure wave creation and transportation principles can be drawn out.