摘要
城市风环境不仅与居民健康密切相关,还与建筑风荷载、区域建筑能耗以及城市热岛效应息息相关。室外风环境模拟中的地面粗糙度参数设置会直接影响到模拟结果的准确性。本文提出2种精细化城市地面粗糙度计算方法,并以上海市五角场中心区为例,开展区域粗糙度精确分布计算,结果显示了风环境数值模拟应当根据建筑所在场地选择精细化的粗糙度参数,并应与目标地区气象参数相结合进行考虑。本文的研究将为建筑师准确模拟室外风环境提供科学、合理的技术支撑。
Urban wind environment is not only critical to residents’ health,but also closely related to wind load of building,regional building energy consumption and urban heat island.The settings of surface roughness directly affect the accuracy of simulation results.In this context,two precise calculation methods for urban surface roughness are put forward.The accurate distribution of regional roughness in Shanghai and Wujiaochang Central Area was calculated with the methods.The results verify the suggestion that precise roughness parameters should be selected according to the site of building in the numerical simulation of wind environment and should be further considered in combination with the meteorological parameters of target area.The findings above will provide scientific and reasonable technical support for architects to accurately simulate outdoor wind environment.
作者
姚佳伟
黄辰宇
庄智
刘剑涛
班淇超
YAO Jiawei;HUANG Chenyu;ZHUANG Zhi;LIU Jiantao;BAN Qichao(College of Architecture and Urban Planning,Tongji University,Shanghai 200092,China;Beijing Glory PKPM Technology Co.,Ltd.Shanghai Branch,Shanghai 200023,China;College of Architecture and Urban Planning,Qingdao University of Technology,Qingdao 266033,Shandong,China)
出处
《建筑科学》
CSCD
北大核心
2020年第8期99-106,共8页
Building Science
基金
国家自然科学基金项目“风环境性能导向的城市中心区空间形态生成设计方法研究”(51908410)
上海市青年科技英才扬帆计划“上海城市中心区建设时序对街区风热环境的影响研究”(19YF1451000)。
关键词
室外风环境
数值模拟
精细化
地表粗糙度
outdoor wind environment
numerical simulation
precise method
surface roughness
