Numerical Simulations of Snow Accumulation in the Bogie Region of a Train Considering Snow Particle Rotation  

作　　者：Hong Lan Jiye Zhang Yao Zhang Lu Cai 

机构地区：[1]State Key Laboratory of Rail Transit Vehicle System,Southwest Jiaotong University,Chengdu,610031,China [2]College of Railway Transportation,Hunan University of Technology,Zhuzhou,412000,China [3]GD Midea Air-Conditioning Equipment Co.,Ltd.,Foshan,528311,China

出　　处：《Fluid Dynamics & Materials Processing》2024年第10期2337-2352,共16页流体力学与材料加工（英文）

基　　金：funded by The National Natural Science Foundation of China(Grant No.12172308);the Provincial Natural Science Foundation of Hunan(Grant No.2023JJ40260).

摘　　要：To investigate the influence of snow particle rotational motion on the accumulation of snow in the bogie region of high-speed trains,an Euler‒Lagrange numerical approach is adopted.The study examines the effects of snow particle diameter and train speed on the ensuing dynamics.It is shown that considering snow particle rotational motion causes significant deviation in the particle trajectories with respect to non-rotating particles.Such a deviation increases with larger snow particle diameters and higher train speeds.The snow accumulation on the overall surface of the bogie increases,and the amount of snow on the vibration reduction device varies greatly.In certain conditions,the amount of accumulated snow can increase by several orders of magnitudes.

关 键 词：High-speed train BOGIE snow particle rotation discrete phase model snow accumulation 

分 类 号：U260.11[机械工程—车辆工程]