Numerical simulation of wind pressure distribution on the stadium for Shenzhen universiade

Abstract:

In order to get the shape factor of wind load on the stadium,numerical simulation of wind pressure distribution was performed on the stadium for Shenzhen universiade based on the Reynolds-averaged N -S equations and Reynolds stress equation model(RSM).The finite volume method was employed to discretize the governing differential equations and the SIMPLE pressure correction iteration algorithm was adopted to solve the nonlinear equations.Numerical results are found to have good agreement with experimental results.On this basis,the characteristics of wind pressure distribution and the flow field characteristics were discussed by considering wind direction and wind attack angles.At last,according to the roof shape and the regularity of wind pressure distribution,mean wind pressure coefficients of regions were provided.The results show that wind direction has great influence on the separation and vortex shedding of the wind flow.The angle of attack has little influence on the wind pressure distribution on the roof,its influence on the local peak value is less than 15% and that on the whole influence is less than 5%.