高层建筑空气动力阴影区的数值计算

Numerical Calculation of Aerodynamic Shadow Zone around High Buildings

空气动力阴影区是建筑物周围风场所形成的旋涡区域 ,该区域的存在会影响室外的空气品质。利用三维 k-ε紊流模型对高层建筑物周围风场进行了数值模拟 ,探讨了该区域的性质 ,同时将计算数值与实验数据进行对比 ,其结果符合很好。

The aerodynamic shadow zone is a recirculation cavity,which influences the quality of outside air. This paper calculates the shadow zone around high buildings with 3D k-ε model,and at the same time,compares the results of computation with those of tests,which points to good compliance.