CFD Numerical Simulation Analysis of Wind Load Based on BIM

For high-rise circular buildings, based on the values of wind load shape coefficients without similar shapes in the building structural load specifications, this project is based on BIM technology and combines BIM technology with CFD technology. Through CFD numerical simulation method, SST k-w turbulence model is used to simulate the surrounding wind field and 8 wind directions of the simplified single building model, and the overall and local wind loads of the building are studied and analyzed, determine the wind load shape coefficient to provide reference for circular buildings. The conclusion is that the windward walls and lower surfaces of circular buildings are mainly under positive pressure, while the leeward walls, sides, lower surfaces, and roofs are generally under negative pressure; The maximum positive pressure appears on the windward wall surface and lower surface of the outer ring, while the absolute value of the maximum negative pressure of the circular building appears at the edge of the inner and outer rings of the roof.