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

Author

Listed:
  • Tingzhen Ming

    (School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122 Luoshi Road, Hongshan District, Wuhan 430070, China
    School of Architectural Engineering, Huanggang Normal University, No. 146 Xingang Second Road, Huanggang 438000, China
    School of Design and Environment, National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore)

  • 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)

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.

Suggested Citation

  • Tingzhen Ming & Shengnan Lian & Yongjia Wu & Tianhao Shi & Chong Peng & Yueping Fang & Renaud de Richter & Nyuk Hien Wong, 2021. "Numerical Investigation on the Urban Heat Island Effect by Using a Porous Media Model," Energies, MDPI, vol. 14(15), pages 1-23, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4681-:d:606724
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    References listed on IDEAS

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    1. Kikegawa, Yukihiro & Genchi, Yutaka & Yoshikado, Hiroshi & Kondo, Hiroaki, 2003. "Development of a numerical simulation system toward comprehensive assessments of urban warming countermeasures including their impacts upon the urban buildings' energy-demands," Applied Energy, Elsevier, vol. 76(4), pages 449-466, December.
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    3. Rajapaksha, I. & Nagai, H. & Okumiya, M., 2003. "A ventilated courtyard as a passive cooling strategy in the warm humid tropics," Renewable Energy, Elsevier, vol. 28(11), pages 1755-1778.
    4. Chen-Yi Sun & Soushi Kato & Zhonghua Gou, 2019. "Application of Low-Cost Sensors for Urban Heat Island Assessment: A Case Study in Taiwan," Sustainability, MDPI, vol. 11(10), pages 1-12, May.
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    Cited by:

    1. Talha Batuhan Korkut & Ahmed Rachid, 2024. "Numerical Investigation of Interventions to Mitigate Heat Stress: A Case Study in Dubai," Energies, MDPI, vol. 17(10), pages 1-17, May.
    2. Néstor García-Chan & Juan A. Licea-Salazar & Luis G. Gutierrez-Ibarra, 2023. "Urban Heat Island Dynamics in an Urban–Rural Domain with Variable Porosity: Numerical Methodology and Simulation," Mathematics, MDPI, vol. 11(5), pages 1-18, February.
    3. Nacer Sellila & Mohammed Louaked & Waleed Mouhali & Houari Mechkour, 2023. "Optimal Control Strategies for Mitigating Urban Heat Island Intensity in Porous Urban Environments," Mathematics, MDPI, vol. 11(23), pages 1-17, November.

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