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

作　　者：Zhihui Du Mengge Yu Jiali Liu Xiulong Yao 

机构地区：[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

出　　处：《Fluid Dynamics & Materials Processing》2024年第7期1687-1701,共15页流体力学与材料加工（英文）

基　　金：Natural Science Foundation of Shandong Province(Grant No.ZR2022ME180),the National Natural Science Foundation of China(Grant No.51705267).

摘　　要：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.

关 键 词：BOGIE the wind-snow multiphaseflow model particle diameter distribution 

分 类 号：U292.9[交通运输工程—交通运输规划与管理]