Based on Realizable k-epsilon turbulence model and discrete phase model,numerical calculation and analysis of air flow field variation,snow accumulation and snow protection optimization in the bogie area of high-speed train at 100 m/s(high-speed rail at 360 km/h)were carried out.The results show that there are a lot of low-speed eddies in the bogie area,and the snow is easy to form on the parts around these low-speed eddies.By designing and installing the deflector and spoiler,the up-flow and back-flow trend of the air flow under the bogie is inhibited,and the snow accumulation of the bogie is reduced significantly.With the improved structure parameters,it is found that the deflector with a downslope distance of 30 mm has the best snow protection performance,which can reduce the snow amount of the bogie by 95.50％.
维普
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