摘要
社区风环境的研究对疫情防控,污染扩散有重要的指导意义。本文基于计算流体力学(CFD)技术对高层建筑平面排布方式与风环境的关系进行数值模拟,横向对比了在相同风速下高层建筑不同的排布方式与风环境的关系,纵向对比了在气流场中不同的地理位置中同种排布方式与风环境的关系,并总结了高层建筑平面排布方式与风环境的一般规律。采用k-e湍流模型对高层建筑的板式和点式平面布局形式进行模拟,结果表明,在相同工况下,板式排布可以在局部减弱来流风速,起到缓冲来流的作用;而对于点式排布,当建筑物处于上风处时,可以减弱尾流风速;当建筑物处于下风处时,建筑物间隔处的流速较低。
The study of community wind environment has important guiding significance for epidemic prevention and control and pollution spread.This paper is based on computational fluid dynamics(CFD)technology to numerically simulate the relationship between the layout of high-rise buildings and the wind environment.The relationship between the layout of high-rise buildings and the wind environment under the same wind speed is compared horizontally,and the wind environment is compared vertically.The relationship between the same kind of arrangement and wind environment in different geographical locations in the field,and summarizes the general laws of high-rise building plan arrangement and wind environment.The k-e turbulence model is used to simulate the slab and point plan layout of high-rise buildings.The results show that under the same working conditions,the slab arrangement can locally weaken the incoming wind speed and play a role in buffering the incoming flow.When the building is upwind,the wake wind speed can be reduced;when the building is downwind,the flow velocity between the buildings is lower.
作者
刘若斐
程骏
LIU Ruofei;CHENG Jun(The Architectural Design&Research Institute of Zhejiang University Co.,Ltd.,Hangzhou 310028,China;Zhejiang Gad Revewing Center of Construction Drawings for Construction Projects,Hangzhou 310007,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期1757-1762,共6页
Building Structure
关键词
高层建筑平面布局形式
风环境
CFD数值模拟
plane layout of high-rise building
wind environment
CFD numerical simulation
