高速列车优化外形的数值分析

Numerical Simulation on Optimization of High Speed Train Geometry

本文利用作者博士研究生期间提出的三维钝体湍流绕流数值计算方法和计算程序，在国内首次对高速列车头型及车体横截面优化进行数值模拟研究，了解流线型头型各几何参数与形阻关系以及横截面各几何参数对横风下列车稳定性、安全性的影响。为京沪线高速列车推荐出综合考虑气动阻力、压力波特性的最佳头型。

The numerical method developed in author′s former paper is used to optimize the head geometry and cross section geometry of high speed trains.The relationship between parameters of trains geometry and drag force is studied,and the stability and safety of train under the cross wind is analysed.The caculation results compare positively with XNJD-1 wind tunnel experiments.Finally,the optimization geometry parameters of train are proposed for high speed train from Beijing to Shanghai.