Numerical simulation of snow screen on expressway in north west Hebei
Highway is an important symbol of modern civilization,but also the basic needs of economic and social development.To ensure the normal operation of the highway is the foundation of social development.Due to the special topographical features and climatic conditions in the northwest of Hebei,the highways in the region are prone to snow disaster,causing traffic paralysis,road clo-sures and affecting the normal travel of residents,brought great inconvenience to the life of the people in the area.In this paper,according to the characteristics of topography and climate in the cold area of northwest Hebei province,with the help of Fluent software,the changes of wind ve-locity and flow field before and after the snow screen with different shape and different porosity are simulated,the optimum parameters of snow-proof net board design are obtained and applied to practical projects,which is of great practical significance to improve the snow disaster of express-way in northwest Hebei province and ensure the normal traffic of highway.To provide a practical solution for the prevention and control of snowstorm on the highways in northwest Hebei.The re-sults show that the snow-proof effect of mesh with 20％and 30％porosity is better than that of other mesh with porosity.
万方数据
维普
