Numerical analysis of the wind field on high buildings

The wind field of high building was computed numerically. Isolated building in wind from different direction was simulated at first. Then the interaction between buildings are studied. It is shown that the eddy vorticity and the pressure gradient have a local maximum in the first area that the wind is blocked, which is also the most dangerous place. Among the buildings, the first building which is facing on coming wind suffers the largest pressure, and the distance between building also has large influence on the wind field. These results can help us to reduce the large scale wind field separation and suppress the wind noise. It can also display the powerful capability of CFD code for the wind field simulations of high buildings.