A numerical investigation on the improvement of anti-snow performance of the bogies of a high-speed train
Journal article, 2019

In this paper, numerical simulations combining unsteady Reynolds-averaged Navier-Stokes (URANS) simulation and the discrete phase model are used to study the application of countermeasure for snow accumulation in the regions of bogie cavities of a high-speed train. The influence of the cowcatcher heights and guide structure configurations on the flow features and snow accumulation was studied. The results of the study show that the cowcatcher with a downward elongation of 4% of the distance between the two axles decreases the snow accumulation in the first and the second bogie regions by about 56.6% and 13.6%, respectively. Furthermore, the guide structures have been found to significantly alter the velocity and pressure distribution in the second bogie region, resulting in a relatively large snow-accumulation reduction. The deflector is found to perform better in reducing snow accumulation when compared to the diversion slots. The cowcatcher, elongated in the downward direction, and the deflector proved to be a good countermeasure for snow accumulation around the bogies of high-speed trains operating in snowy weather conditions. © IMechE 2019.

Bogies

snow reduction

cowcatcher height

numerical simulation

high-speed train

guide structure

Author

Jiabin Wang

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Yan Zhang

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Central South University

Jie Zhang

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Xifeng Liang

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Sinisa Krajnovic

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Guangjun Gao

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

0954-4097 (ISSN)

Vol. In Press

Subject Categories

Energy Engineering

Vehicle Engineering

Fluid Mechanics and Acoustics

DOI

10.1177/0954409719893494

More information

Latest update

1/20/2020