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以夏季华南地区湿热气候为背景,采用计算流体力学方法模拟了水体对居住小区局地气候调节作用,根据模拟结果研究水体对居住小区风场、湿度场和温度场的影响。结果显示:水体在白天增温阶段有降温作用,傍晚降温阶段起保温作用,并有增湿和调节风速的作用,7.5%面积占有率的水体能很好改善20 m区域内气候。
Based on the hot and humid climate in southern China in summer, the effect of water on local climate regulation in residential area was simulated by computational fluid dynamics (CFD). The influence of water on wind field, humidity field and temperature field in residential area was studied based on the simulation results. The results show that the water body has a cooling effect during the daytime warming stage and keeps warm during the evening cooling stage, with the effect of humidifying and regulating the wind speed. The water body with a 7.5% area occupancy rate can well improve the climate within 20 m.