基于形态学法和CFD的福州市通风潜力评价  

BASED ON MORPHOMETRIC METHOD AND CFD OF URBAN WIND ENVIRONMENT ASSESSMENT IN FUZHOU

作　　者：尹杰[1,2] 詹庆明[2] 梁婷[3] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]武汉大学城市设计学院,武汉430072 [3]瑞典皇家理工学院(KTH),斯德哥尔摩11416

出　　处：《工业建筑》2018年第2期63-68,共6页Industrial Construction

基　　金：国家自然科学基金项目(51378399)

摘　　要：为了应对人口高度聚集和土地资源短缺的压力,城市开发强度剧增,导致城市通风环境恶化。从城市尺度和街区尺度挖掘城市通风潜力,探寻城市形态与城市风环境的关联性。在城市尺度,通过地理信息系统（GIS）的量化分析,计算迎风面积密度（FAD）,发现改变建筑密度和建筑体积密度可以改善城市通风环境;通过CFD模拟街区尺度的风环境,发现地块的建筑密度决定人行高度的通风潜力,地块迎风面的布局形式也会影响通风。The urban usually copes with population growth and shortage of land resources by increasing the development intensity,but the city＇s wind environment is deteriorating. The paper focused on both the urban scale and street scale to explore the relationship between urban morphology and urban wind environment. In the urban scale,the frontal area density（ FAD） was calculated by geographic information systems（ GIS）,and it was found that the urban wind environment could be improved by ground coverage ratio（ GCR） and building volume density（ BVD）.In the street scale,it was found that GCR had a strong linear relationship with the pedestrian level wind speed by computational fluid dynamics（ CFD）,the layout of frontal block could also affect the ventilation.

关 键 词：地理信息系统(GIS) 计算流体动力学(CFD) 建筑密度(GCR) 建筑体积密度(BVD) 迎风面积密度(FAD) 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]