EFFECTS OF WIND SPEED AND DURATION ON PROCESS OF SNOW DISTRIBUTION AROUND A CUBE

Snow accumulation around buildings is one of the most common natural disasters in snowy and windy areas in winter. Although numerical simulation has achieved fruitful results in recent years, it still lacks an extensive verification due to its complex mechanism, which limits the effectiveness and accuracy of the prediction methods. To reveal the influences of wind speed and duration on the process of snow accumulation around the cube, the field measurements of a stable blowing snow condition in severely cold northwestern region were carried out by measuring the depth of snow at different moments around the cube model at different wind speeds. The maximum snow depth and snow profile change in the accumulation area under different conditions and the snow accumulation patterns on both sides of the windward region were discussed. The results show that under different conditions, the snow is accumulated against the wall of the cube, and erosion occurs at the front and rear of the model. With the change of the wind speed, snow depth, snow deposition range, snow accumulation location will change accordingly. As time changes, the position of maximum snow depth will also change.