Analysis of Snow Distribution and Displacement in the Bogie Region of a High-Speed Train

Zhihui Du¹, Mengge Yu^1,*, Jiali Liu², Xiulong Yao¹
1 College of Mechanical and Electrical Engineering, Qingdao University, Qingdao, 266071, China
2 National Engineering Research Center for High-Speed EMU, CRRC Qingdao Sifang Co., Ltd., Qingdao, 266111, China
* Corresponding Author: Mengge Yu. Email: email

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.047315

Received 01 November 2023; Accepted 21 February 2024; Published online 08 April 2024

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Abstract

Snow interacting with a high-speed train can cause the formation of ice in the train bogie region and affect its safety. In this study, a wind-snow multiphase numerical approach is introduced for high-speed train bogies on the basis of the Euler-Lagrange discrete phase model. A particle-wall impact criterion is implemented to account for the presence of snow particles on the surface. Subsequently, numerical simulations are conducted, considering various snow particle diameter distributions and densities. The research results indicate that when the particle diameter is relatively small, the distribution of snow particles in the bogie cavity is relatively uniform. However, as the particle diameter increases, the snow particles in the bogie cavity are mainly located in the rear wheel pairs of the bogie. When the more realistic Rosin-Rammler diameter distribution is applied to snow particles, the positions of snow particles with different diameters vary in the bogie cavity. More precisely, smaller diameter particles are primarily located in the front and upper parts of the bogie cavity, while larger diameter snow particles accumulate at the rear and in the lower parts of the bogie cavity.

Keywords

Bogie; the wind-snow multiphase flow model; particle diameter distribution

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Analysis of Snow Distribution and Displacement in the Bogie Region of a High-Speed Train

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