Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses
In the underground space development of residential areas, outdoor thermal environments at the pedestrian level greatly depend on the ground greening configuration, which is in turn affected by the overburden thickness of the underground space (OTUS). However, few studies have considered the effects...
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2017-09-01
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doaj-742f014f55fe462b88933030e43f459d2020-11-25T00:53:00ZengMDPI AGSustainability2071-10502017-09-0199165610.3390/su9091656su9091656Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden ThicknessesXiaochao Su0Hao Cai1Zhilong Chen2Qilin Feng3Underground Space Research Center, Army engineering university of PLA, Nanjing 210007, ChinaState Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, ChinaUnderground Space Research Center, Army engineering university of PLA, Nanjing 210007, ChinaState Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, Army Engineering University of PLA, Nanjing 210007, ChinaIn the underground space development of residential areas, outdoor thermal environments at the pedestrian level greatly depend on the ground greening configuration, which is in turn affected by the overburden thickness of the underground space (OTUS). However, few studies have considered the effects of OTUS on the ground greening configuration and the further effects of the ground greening configuration on the outdoor thermal environment. This study aimed to provide insights into the design of OTUS for improving outdoor thermal environments. Two residential areas with row and enclosed layouts in Nanjing, China, were numerically studied using the computational fluid dynamics (CFD) simulation software ENVI-met. Outdoor thermal environments in the two residential areas, which had the same greening coverage rate, were simulated under different OTUSs and ground green configurations. The results indicate that to create a comfortable outdoor thermal environment, the OTUS should be designed to satisfy the requirement for planting small trees. If this requirement cannot be adequately satisfied, individuals can also set up tree wells or add soil on top of underground structures to plant small trees, and establish an OTUS that can satisfy the requirement of planting large shrubs in other areas.https://www.mdpi.com/2071-1050/9/9/1656underground spaceoverburden thicknessresidential areagreening configurationoutdoor thermal environment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaochao Su Hao Cai Zhilong Chen Qilin Feng |
spellingShingle |
Xiaochao Su Hao Cai Zhilong Chen Qilin Feng Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses Sustainability underground space overburden thickness residential area greening configuration outdoor thermal environment |
author_facet |
Xiaochao Su Hao Cai Zhilong Chen Qilin Feng |
author_sort |
Xiaochao Su |
title |
Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses |
title_short |
Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses |
title_full |
Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses |
title_fullStr |
Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses |
title_full_unstemmed |
Influence of the Ground Greening Configuration on the Outdoor Thermal Environment in Residential Areas under Different Underground Space Overburden Thicknesses |
title_sort |
influence of the ground greening configuration on the outdoor thermal environment in residential areas under different underground space overburden thicknesses |
publisher |
MDPI AG |
series |
Sustainability |
issn |
2071-1050 |
publishDate |
2017-09-01 |
description |
In the underground space development of residential areas, outdoor thermal environments at the pedestrian level greatly depend on the ground greening configuration, which is in turn affected by the overburden thickness of the underground space (OTUS). However, few studies have considered the effects of OTUS on the ground greening configuration and the further effects of the ground greening configuration on the outdoor thermal environment. This study aimed to provide insights into the design of OTUS for improving outdoor thermal environments. Two residential areas with row and enclosed layouts in Nanjing, China, were numerically studied using the computational fluid dynamics (CFD) simulation software ENVI-met. Outdoor thermal environments in the two residential areas, which had the same greening coverage rate, were simulated under different OTUSs and ground green configurations. The results indicate that to create a comfortable outdoor thermal environment, the OTUS should be designed to satisfy the requirement for planting small trees. If this requirement cannot be adequately satisfied, individuals can also set up tree wells or add soil on top of underground structures to plant small trees, and establish an OTUS that can satisfy the requirement of planting large shrubs in other areas. |
topic |
underground space overburden thickness residential area greening configuration outdoor thermal environment |
url |
https://www.mdpi.com/2071-1050/9/9/1656 |
work_keys_str_mv |
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