Investigation on the Aerodynamic Characteristics of the High Speed Train on Multiple Track under Strong Cross Wind

Abstract

The aerodynamic characteristics and contrastive analysis of the high-speed train in different locations on multiple tracks under strong crosswind are studied numerically by the Reynolds-average method, and analyzed the effects of the velocity of train and the wind velocity on the high-speed train. The numerical results indicate that the aerodynamic forces on the train running on the second track are greater than that on the first track, that’s to say, the safety is lower to run on the second track；under the same condition of the way and velocity of train, the aerodynamic forces increased significantly with the increasing of the wind velocity；under the same condition of the wind velocity, the aerodynamic forces of head coach increased significantly with the increasing of the velocity of the train, at the same time, the aerodynamic forces of middle coach and tail coach increase not very obviously.