Numerical Investigation on the Urban Heat Island Effect by Using a Porous Media Model

Tingzhen Ming, Shengnan Lian, Yongjia Wu, Tianhao Shi, Chong Peng, Yueping Fang, Renaud de Richter and Nyuk Hien Wong
Additional contact information
Tingzhen Ming: School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122 Luoshi Road, Hongshan District, Wuhan 430070, China
Shengnan Lian: School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122 Luoshi Road, Hongshan District, Wuhan 430070, China
Yongjia Wu: School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122 Luoshi Road, Hongshan District, Wuhan 430070, China
Tianhao Shi: School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122 Luoshi Road, Hongshan District, Wuhan 430070, China
Chong Peng: School of Architecture and Urban Planing, Huazhong University of Science and Technology, Wuhan 430074, China
Yueping Fang: Institute for Future Transport and Cities, School of Energy, Construction and Environment, Coventry University, Priory Street, Coventry CV1 5FB, UK
Renaud de Richter: Tour-Solaire.Fr, 8 Impasse des Papillons, F34090 Montpellier, France
Nyuk Hien Wong: School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore

Energies, 2021, vol. 14, issue 15, 1-23

Abstract: The urban heat island (UHI) effect resulted from urbanization as well as industrialization has become a major environmental problem. UHI effect aggravates global warming and endangers human health. Thus, mitigating the UHI effect has become a primary task to address these challenges. This paper verifies the feasibility of a three-dimensional turbulent porous media model. Using this model, the authors simulate the urban canopy wind-heat environment. The temperature and flow field over a city with a concentric circular structure are presented. The impact of three factors (i.e., anthropogenic heat, ambient crosswind speed, and porosity in the central area) on turbulent flow and heat transfer in the central business district of a simplified city model with a concentric circular structure were analyzed. It is found that the three-dimensional turbulent porous media model is suitable for estimating the UHI effect. The UHI effect could be mitigated by reducing the artificial heat and improving the porosity of the central city area.

Keywords: porous media; heat island effect; wind field; CFD simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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