Numerical and experimental investigation on snow accumulation on bogies of high-speed trains
Guang-jun Gao , Yan Zhang , Jia-bin Wang
Journal of Central South University ›› 2020, Vol. 27 ›› Issue (4) : 1039 -1053.
Numerical and experimental investigation on snow accumulation on bogies of high-speed trains
This paper reviews the current status of investigation on snow accumulation on the bogies of high-speed trains (HSTs) running in snowy region. First, the background of the snow issue occurring to the HST and the contra-measures for the snow issue proposed in the past decades are provided by reviewing previous studies. Next, the methodology for investigating the snow issue developed by High-Speed Train Research Center of Central South University is introduced, including the numerical simulation research platform and the experimental devices for two-phase flow wind tunnel tests. Then, effective anti-snow flow control schemes for guiding the underbody airflow and their impact on the motion and accretion of snow in the installation region of the bogies are presented. Finally, the remaining investigating challenge for the snow issue of HST and the future research with respect to the challenge are provided from an engineering application viewpoint.
high-speed train / snow issue / bogies / numerical simulation / experiment
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