高速集装箱平车空气动力学仿真研究

通过采用SST k-ω湍流模型对200km/h高速集装箱平车进行外流场分析,得到了集装箱平车表面压力分布、机车和集装箱受到的阻力以及车间流体速度分布,并对机车和集装箱相对高度差对列车空气阻力的影响进行了分析.研究结果表明：高速集装箱平车所受的空气阻力以压差阻力为主,并随着机车与集装箱平车相对高度的减小而增大.

Aerodynamic Simulation of High Speed Container Freight Train

In this paper,the SST k-ω turbulence model was used for the numerical simulation on external flow field of high-speed container freight train with 200km/h.It studied the pressure distribution on the train surface,the resistance on locomotive and vehicles,the fluid velocity between vehicles as well as the effect of different relative height of the locomotive and the vehicle to train aerodynamics.The results show that pressure drag dominates the large resistance of high-speed container freight train,and the train resistance increases with the relative height decrease.Some suggestions were given according to the results at last.