NUMERICAL SIMULATION OF SNOWDRIFT ON EMBANKMENT BASED ON TWO EQUATION MODEL

Snowdrift disasters are one of the important factors considered in road planning in cold areas. Numerical simulation, as one of the main means of snowdrift research, has developed rapidly in recent years. However, the parameters of numerical simulation need to be further improved due to the complexity of the snowdrift. Based on the Euler-Euler model, this paper uses the empirical formula of snow phase concentration to simulate snowdrift according to the two-equation model, and verifies the simulation method by using snowdrift results on flat ground. The influence of the turbulent Schmidt number on the simulation results of snowdrift on the embankment is analyzed, and the snowdrift on a typical embankment is simulated under different wind speeds. The results show that the simulation of snowdrift on flat ground is consistent with the measured results, and the turbulent Schmidt number has large influence on the calculation results of snow concentration. The distribution of snow concentrations under different wind speeds is consistent. These results provide a reference for further research on the redistribution and prevention of snowdrift on the road.