利用PHOENICS软件,以室外舒适风区比例、建筑组团中的平均风速、准静风区的平均风速及舒适风区的平均风速为指标,系统、定量地分析了不同建筑密度及容积率下建筑底层架空的设置对自然通风的影响。结果表明,建筑底层架空时,对建筑组团的风环境状况有较好的改善作用,其中对于改善高建筑密度、低容积率建筑组团的风环境状况更为有效。 Using PHOENICS software, taking the ratio of outdoor comfort zone, average wind speed in building group, average wind speed in quasi-static zone and average wind speed in comfortable wind zone as an indicator, the floor of the building under different building densities and volumetric rates The impact of overhead setting on natural ventilation. The results show that when the floor of the building is overhead, it can improve the wind and environmental conditions of the construction group. Among them, it is more effective to improve the wind and environmental conditions of the high-density and low-volume construction group.