Study on Snow and Ice of Bogie based on STAR-CCM+

Abstract

When high-speed train running in cold region, large quantities of snow and ice gather on the surface of bogie, seriously threatening high-speed train traffic safety. In this paper, the Lagrange multiphase model implanted in commercial CFD software STAR-CCM+ was used to simulate the air-snow two-phase flow in the flow field of high-speed train bogie. The results show that the airflow mainly entered the bogie region through the bottom surface of train, and the snow particles accumulating on the roadbed are accelerated because of the driving effect of the aerodynamic force. The many complex air vortexes form and flow around the main heating-generating equipment since the complex structure of bogie and the snow particles rush against the main heat-generating components (motors, brake clamps, gearboxes, etc.) and resulting in serious snow and ice accumulation.