Numerical investigation of urban heat island effect in various urban formsOA
The urban heat island effect is a widespread phenomenon in major cities worldwide,exerting significant impacts on urban environments,human health,and energy consumption,thus attracting extensive research interest.The manifestation of the urban heat island effect varies across different urban forms.This study employs a three-dimensional porous media model to comprehensively analyze the urban heat island effect and the influence of wind speed on three typical urban layouts:single-center,multi-center,and grid.The results indicate:(1)The more dispersed the city center,the weaker the urban heat island intensity,with differences in peak heat island intensity of up to 0.3 K among different urban forms.(2)Under favorable environmental wind conditions,higher wind speeds lead to weaker heat island intensity.At v=5 m/s,the grid-based heat island intensity decreases by 0.57 K.(3)With increasing building density,the urban heat island effect intensifies in all three types of cities,with the single-center city exhibiting the largest increase in heat island intensity,up to 23.5%。
Tingzhen Ming;Yachen Liu;Tianhao Shi;Chong Peng;Yanhua Chen;Renaud de Richter;Yueping Fang
School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China Sanya Science and Education Innovation Park,Wuhan University of Technology,Sanya 572024,ChinaSchool of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,ChinaSchool of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,ChinaSchool of Architecture and Urban Planning,Huazhong University of Science and Technology,Wuhan 430074,ChinaCITIC General Institute of Architectural Design and Research CO.Ltd,Wuhan 430014,ChinaTour-Solaire.Fr,8 Impasse des Papillons,F34090 Montpellier,FranceSchool of Energy,Construction and Environment,Coventry University,Priory Street CV15FB,United Kingdom
资源环境
Numerical modelingPorous mediaUrban heat islandUrban form
《Energy and Built Environment》 2026 (1)
P.54-65,12
supported by the National Natural Science Foundation of China(Grant no.52278123)CITIC General Institute of Architectural Design and Research(No.2022ZXKYD30100)the Scientific Research Foundation of the Wuhan University of Technology(Grant nos.40120237 and 40120551).
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