Study on Wind Load Distribution on the Surface of Dome Structure Based on CFD Numerical Simulation

Abstract

This study presents based on the constant Reynolds average Navier-Stokes equation, the surface wind pressure and surrounding wind field of the dome structure under different winds are numerically simulated by finite element software. The RNG turbulence model is used to calculate the flow coefficients around the building and the pressure coefficient distribution around the roof at 7 wind direction angles from 0° to 90°, and analyze the basic characteristics. In addition, the six aerodynamic components of each wind are calculated, and their variation with the wind direction angle is pointed out. Moreover, The maximum negative pressure at the top of different winds is predicted and compared with the wind tunnel test data of the structure. Those result agree well.