Abstract: The optimization of building-complex arrangement and thedesign of structural wind resistance require an exact prediction of windenvironment around the building complex. In view of the importance of wind environment, a numerical simulation (CFD) is introduced for theprediction of wind effect around the building complex. The wind velocity and pressure in various building arrangementsare simulated and analyzed. A reasonable pneumatic layout for givenbuildings is obtained. The wind tunnel test can be carried out based on theprediction of the numerical simulation. At the same time, the numerical simulation canprovide a scientific basis for the optimization of the building-complexarrangement and the design of structural wind resistance.