【摘要】 高层住区低层架空对丰富居民活动，改善住区室空间热物理环境具有积极意义。针对武汉地区气候特征与焓湿变化，探讨了适合于活动的室外热舒适范围。以武汉高层住区为例，采用CFD模拟方法针对不同低层架空率的5种工况进行了模拟分析，对比了夏季、冬季和过渡季情况下不同低层架空方案对室外风速V、舒适风区S值的影响。结果发现：平均风速的变化并不与架空率呈线性关系；在不同季节(风向)下，底层架空设计对室外平均风速的影响也不同，相较建筑底层架空设计而言，对建筑组团室外平均风速的影响很大程度上取决于入射风向。从适应地域气候特征角度来讲，建议武汉地区高层住区在有效增大夏季自然通风舒适区域，降低冬季强风区的前提下，底层架空设置在40%～60%之间较为适宜。更多还原

【Abstract】 Ground floor overhead in high-rise residential areas has positive significance for enriching residents’ activities and improving the thermal-physical environment of residential space. According to the climate characteristics and enthalpy and humidity changes in Wuhan city, the paper discusses the outdoor thermal comfort range suitable for activities. Taking high-rise residential areas in Wuhan city as an example, the CFD simulation method is used to simulate and analyze five working conditions with different ground floor overhead ratios, and compare the outdoor wind speed V and comfortable wind zone S value of different ground floor overhead schemes in summer, winter and transition seasons. The study found that the change of the average wind speed is not linear with the overhead rate; in different seasons(wind direction), the impact of the ground floor overhead design on the outdoor average wind speed is also different; The influence of wind speed depends largely on the incident wind direction; from the perspective of adapting to the regional climate characteristics, high-rise residential areas in Wuhan city can effectively increase the natural ventilation comfort areas in summer and reduce the strong wind area in winter, and the ground floor overhead is set at between 40%～60% is more appropriate.更多还原