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  Richter; Nyuk  Wong

doi:10.3390/en14154681

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 Richter, Nyuk Wong

School of Energy, Construction and Environment

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

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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

Original language	English
Article number	4681
Number of pages	23
Journal	Energies
Volume	14
Issue number	15
DOIs	https://doi.org/10.3390/en14154681
Publication status	Published - 1 Aug 2021

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Funder

The National Key Research and Development Plan (Key Special Project of Inter‐governmental National Scientific and Technological Innovation Cooperation, Grant No. 2019YFE0197500), National Natural Science Foundation of China (Grant Nos. 51778511), the European Commission H2020 Marie S Curie Research and Innovation Staff Exchange (RISE) award (Grant No. 871998)

Keywords

porous media
heat island effect
wind field
CFD simulation

ASJC Scopus subject areas

Environmental Science(all)
Engineering(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/en14154681 Licence: CC BY

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Cite this

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title = "Numerical Investigation on the Urban Heat Island Effect by Using a Porous Media Model",

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 aconcentric 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",

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AU - Ming, Tingzhen

AU - Lian, Shengnan

AU - Wu, Yongjia

AU - Shi, Tianhao

AU - Peng, Chong

AU - Fang, Yueping

AU - Richter, Renaud

AU - Wong, Nyuk

N1 - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PY - 2021/8/1

Y1 - 2021/8/1

N2 - 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 aconcentric 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

AB - 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 aconcentric 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

KW - porous media

KW - heat island effect

KW - wind field

KW - CFD simulation

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U2 - 10.3390/en14154681

DO - 10.3390/en14154681

M3 - Article

SN - 1996-1073

VL - 14

JO - Energies

JF - Energies

IS - 15

M1 - 4681

ER -

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

Abstract

Bibliographical note

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Keywords

ASJC Scopus subject areas

UN SDGs

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