NUMERICAL PREDICTION OF WIND-FLOW EFFECT ON A TWIN-TOWER TALL BUILDING
高层双塔楼绕流风场效应的数值预测

Wind flow around twin-tower tall buildings is generally complicated and there is no simple method or laws for determination of the induced surface pressures on such buildings. Therefore study and prediction of wind effect on this type of buildings are necessary. Based on the wind tunnel test of surface pressures on a twin-tower tall building, the wind flow around the building was predicted using the time-averaged numerical simulation technique. The wind-flow characteristics and the law of pressure distributions were summarized accordingly. Through comparison of the computed wind pressures with the corresponding wind tunnel test data, it indicates that the numerical simulation technique is accurate and feasible in prediction of the wind flow involving strong aerodynamic interference.