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Numerical investigation of snow accumulation on a high-speed train by snow saltation

Author

Listed:
  • Jinkyu Bae
  • Soonho Shon
  • Hyeokbin Kwon
  • Kwanjung Yee

Abstract

Snow accumulation on the undercarriage of a train is an important issue that significantly degrades the safety and performance of the vehicle. This phenomenon is primarily attributed to snow saltation induced by train-generated wind gusts. This study numerically investigated the snow accumulation on a train by modelling the snow saltation for the initial movement of drifting snow from the ground. A semi-empirical snow saltation model was applied to the boundary condition for a snow-covered ground, and Eulerian governing equations were solved for snow phase flow. Using the present method, a high-speed train model comprising multiple cars and a single-car model were simulated. The results presented the novel trend of snow accumulation, which gradually increased towards the rear of the train but remained relatively constant after a third car.

Suggested Citation

  • Jinkyu Bae & Soonho Shon & Hyeokbin Kwon & Kwanjung Yee, 2023. "Numerical investigation of snow accumulation on a high-speed train by snow saltation," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 11(4), pages 465-489, July.
    • Handle: RePEc:taf:tjrtxx:v:11:y:2023:i:4:p:465-489
    DOI: 10.1080/23248378.2022.2094483
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