不同位置的水系对住宅小区热环境影响的模拟分析

Numerical Study on the Effect of River System in Different Locations to Thermal Environment of Residential Neighborhood

用数值模拟的方法对沈阳地区某住宅小区夏季的热湿环境进行分析,建立该住宅小区的数学模型,利用Fluent和Airpak软件进行数值模拟,对比分析水系位于小区内西侧、南侧和东侧等不同位置时,住宅小区人行高度1.5 m处的温度、相对湿度(RH)、预测平均评价与不满意百分比(PMV-PPD)以及平均空气龄(MAA)的分布。不同位置的水系对小区内热环境的影响是不同的,且当水系位于小区内东侧时对小区热环境的改善是最好的。

Based on softwares of Fluent and Airpak,a mathematical model of a residential neighborhood in Shenyang was built to analyze the thermal environment of the area in summer.A series of results at pedestrian level of 1.5 meters when water systems in different locations were obtained,such as temperature field,relative humidity（RH） field,Predicted Mean Vote and Predicted Percent Dissatisfied（PMV-PPD）,as well as Mean Age of Air（MAA）.The simulation results showed that the effect to the thermal environment of the residential were different when the water systems located in different places.All the simulation results illustrated that the thermal environment was best when the water system located on the south.