摘要
基于Fluent 6软件平台,对上海市某住宅小区多个高层建筑的风场进行三维数值模拟研究.首先采用英联邦航空咨询理事会(CAARC)标准模型进行可行性验证,然后对该小区风场及建筑物的风场进行了数值模拟,发现并分析了该实际建筑规划中的"喇叭口"风效应.最后,讨论了街区群楼间高度、风向、风速及建筑布局等因素的改变对风场和荷载的影响.研究表明,合适改变建筑布局、增大间距以及高度差能有效减小风荷载.
3D numerical simulation of wind field around high-rise buildings of a residential quarter in Shanghai is analyzed on the basis of Fluent 6. At first, Commonwealth Advimry Aeronautical Reseaeh Council （CAARC） standard model is computed to verify the feasibility of the method. Then wind field around the quarter as well as the buildings is simulated and the Bell Mouth Effect is found and analyzed. Finally, the influences of factors change like height, inlet angle, velocity and location on the wind flow and wind load are discussed. The results show that the wind load can be efficiently reduced when properly changing building layout or increasing the distance and height gap.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第5期592-597,共6页
Journal of Tongji University:Natural Science
基金
国家自然科学基金创新研究群体科学基金(50621062)
国家自然科学基金重大研究计划重点项目(90715040)
上海市建筑技术发展基金会预研究项目(YB05017)联合资助
关键词
高层建筑
风灾
湍流
数值模拟
high-rises
wind disaster
turbulence
numerical simulation
