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Characteristics of pressure wave induced by high speed trains meeting in open air
Authors
刘晨辉
李现今
杨国伟
Publication date
28 May 2012
Publisher
Abstract
列车交会压力波是影响列车运行安全性和乘客舒适度的重要因素之一,因此需要对压力波特性进行研究。采用计算流体力学方法求解三维黏性可压缩N-S方程组,对不同时速下国产新型高速列车会车过程进行三维非定常仿真。得出了压力波以及侧向力的变化规律曲线。结果表明最大压力波幅值出现在尾车等截面与变截面过渡处的鼻尖高度位置。会车过程中,车体将承受两次排斥力和一次吸引力,这将对列车的稳定行驶产生一定的影响。列车所受侧向力随会车线间距的增大而减小
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018