来流方向对建筑物周围流场的影响

The Effect of the Wind Direction on the Flow around a Building

运用ｋ－ε双方程湍流模型数值模拟建筑物周围的流场，并计算模拟了风向的变化对建筑物周围流场的影响，从而说明来流方向是影响建筑物周围流场的重要因素之一．

Two dimension numerical simulations of airflow around a cubic model using the k ε two equation turbulence model are presented. Several cases of the numerical simulation of airflow with different approaching direction around a cubic model are carried out to estimate the influences of the wind direction on the simulated results. It is concluded that the wind direction is one of the important factors that influence the characteristics of the airflow around a building.