THE INFLUENCE OF ASPECT RATIO ON SNOW DISTRIBUTION AROUND A CUBOID MODEL

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, the parameter setting is still insufficient due to the limited measurement data of the snow around a single cube model in the wind and snow flow. Therefore, the simulation method has not been widely verified due to the lack of field measurements, which limits the further improvement and promotion of the prediction method. To reveal the influence of aspect ratio on the snow distribution around buildings, the snow distribution around cuboid models at various conditions was measured on-site. Meanwhile, the numerical method was used to simulate the wind field around the models. The wind field and snow distribution around the model were compared to show the correlation. The results show that the wind speed around the model can well predict the snow erosion and accumulation range. For buildings with different aspect ratios, the snow distribution on the windward side is only related to the height of the building. The aspect ratio has slight influence on it. The cross-wind erosion range is proportional to the length of the building, and the leeward side erosion range is greatly affected by the length of the building. The width of the building insignificantly influences the distribution of surrounding snow.