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DOI	10.1016/j.scs.2021.103541
	To what extent can urban ventilation features cool a compact built-up environment during a prolonged heatwave? A mesoscale numerical modelling study for Hong Kong
	Kwok, Yu Ting; de Munck, Cecile; Lau, Kevin Ka-Lun; Ng, Edward
通讯作者	Kwok, YT
来源期刊	SUSTAINABLE CITIES AND SOCIETY
ISSN	2210-6707
EISSN	2210-6715
出版年	2022
卷号	77
英文摘要	Recent advances in numerical tools and data for the study of urban microclimates have helped to evaluate countermeasures for urban heat in heterogeneous and high-rise cities such as Hong Kong. Thus, two ventilation strategy designs, point ('oases') and linear ('corridors') features, were numerically simulated during a typical heatwave using the multi-layer coupled MesoNH-SURFEX-TEB mesoscale atmospheric model. These strategies proved to be effective at night with respect to thermal comfort but caused a localised increase in heat stress during the day in the ventilated areas, which were less shaded. There was no significant deterioration in the wind performance around the developments that were redesigned to accommodate the displaced population due to the construction of the ventilation features; however, an improvement was observed in thermal comfort during the daytime. The simulated impacts were relatively localised, suggesting the importance of increasing porosity across the entire urban fabric. The corridors, especially when built along the axis of the prevailing winds, exhibited better ventilation at the pedestrian level than the oases. Nevertheless, the oases remain interesting features in the context of progressive urban ventilation planning that involve the implementation of isolated, connected, and eventually a network of features to provide benefits at the megalopolis scale.
英文关键词	Urban ventilation Wind corridor Urban heat mitigation Mesoscale atmospheric model High-density city Climate-responsive urban planning
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000780270300001
WOS关键词	HIGH-DENSITY CITIES ; ENERGY-BALANCE MODEL ; WIND ENVIRONMENT ; STREET-CANYONS ; CLIMATE ; HIGHRISE ; LEVEL ; SIMULATION ; CFD ; GUIDELINES
WOS类目	Construction & Building Technology ; Green & Sustainable Science & Technology ; Energy & Fuels
WOS研究方向	Construction & Building Technology ; Science & Technology - Other Topics ; Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394697
推荐引用方式 GB/T 7714	Kwok, Yu Ting,de Munck, Cecile,Lau, Kevin Ka-Lun,et al. To what extent can urban ventilation features cool a compact built-up environment during a prolonged heatwave? A mesoscale numerical modelling study for Hong Kong[J],2022,77.
APA	Kwok, Yu Ting,de Munck, Cecile,Lau, Kevin Ka-Lun,&Ng, Edward.(2022).To what extent can urban ventilation features cool a compact built-up environment during a prolonged heatwave? A mesoscale numerical modelling study for Hong Kong.SUSTAINABLE CITIES AND SOCIETY,77.
MLA	Kwok, Yu Ting,et al."To what extent can urban ventilation features cool a compact built-up environment during a prolonged heatwave? A mesoscale numerical modelling study for Hong Kong".SUSTAINABLE CITIES AND SOCIETY 77(2022).