南方科技大学知识苑(SUSTech KC): How Does the Interaction of the Human Thermal Plume and Breathing Affect the Microenvironment and Macroenvironment of an Elevator Cabin?

题名	How Does the Interaction of the Human Thermal Plume and Breathing Affect the Microenvironment and Macroenvironment of an Elevator Cabin?
作者	Pourfattah, Farzad1,2 ; Deng, Weiwei1,2 ; Wang, Lian-Ping1,2,3
通讯作者	Wang, Lian-Ping
发表日期	2024-05-22
DOI	10.1155/2024/9593123
发表期刊	INDOOR AIR 影响因子和分区
ISSN	0905-6947
EISSN	1600-0668
卷号	2024
摘要	The details of the interaction of human thermal plume and breathing activities are simulated in the current study of an unsteady turbulent flow field in an elevator cabin. Air velocity and temperature distributions of the circulation flow pattern (i.e., the macroenvironment), the breathing-scale microenvironment's characteristics, and the thermal plume's fate are analyzed. The current study is aimed at showing how respiratory activities such as breathing and human thermal plumes affect the flow field and respiratory contaminants dispersion pattern in a nonventilated enclosed environment (the elevator cabin). The results from three cases, i.e., breathing thermal manikins, nonbreathing thermal manikins, and isothermal breathing manikins, are contrasted to unveil better the effects of human thermal plume and breathing on the flow field, including the velocity distribution, dispersion pattern of the exhaled contaminant, the human body's heat transfer coefficient, and the large-scale flow pattern. Results reveal that breathing inhalation increases the upward velocity of the thermal plume on the one hand, which directly affects the microenvironment and indirectly impacts the macroenvironment due to the more vigorous reflected thermal plume. On the other hand, the upward thermal plume reduces the penetration length of the exhaled jet. Breathing activities create ring vortices that connect the microenvironment and the macroenvironment. The circulation flow features a downward flow in the cabin's center, affecting the vortex strength and contaminant dispersion pattern. Overall, the human thermal plume and human breathing make comparable contributions to the resulting elevator-cabin flow characteristics.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	Science, Technology and Innovation Committee of Shenzhen Municipality[2020-148] ; National Natural Science Foundation of China[12041601] ; NSFC Basic Science Center Program[11988102] ; Guangdong Provincial Key Laboratory of Turbulence Research and Applications[2019B21203001] ; null[2020B1212030001]
WOS研究方向	Construction & Building Technology ; Engineering ; Public, Environmental & Occupational Health
WOS类目	Construction & Building Technology ; Engineering, Environmental ; Public, Environmental & Occupational Health
WOS记录号	WOS:001248622700001
出版者	WILEY-HINDAWI
ESI学科分类	ENGINEERING
来源库	Web of Science
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/787775
专题	工学院_力学与航空航天工程系南方科技大学
作者单位	1.Southern Univ Sci & Technol, Ctr Complex Flows & Soft Matter Res, Guangdong Prov Key Lab Turbulence Res & Applicat, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China 3.Southern Univ Sci & Technol, Guangdong Hong Kong Macao Joint Lab Data Driven Fl, Shenzhen 518055, Peoples R China
第一作者单位	南方科技大学; 力学与航空航天工程系
通讯作者单位	南方科技大学; 力学与航空航天工程系
第一作者的第一单位	南方科技大学
推荐引用方式 GB/T 7714	Pourfattah, Farzad,Deng, Weiwei,Wang, Lian-Ping. How Does the Interaction of the Human Thermal Plume and Breathing Affect the Microenvironment and Macroenvironment of an Elevator Cabin?[J]. INDOOR AIR,2024,2024.
APA	Pourfattah, Farzad,Deng, Weiwei,&Wang, Lian-Ping.(2024).How Does the Interaction of the Human Thermal Plume and Breathing Affect the Microenvironment and Macroenvironment of an Elevator Cabin?.INDOOR AIR,2024.
MLA	Pourfattah, Farzad,et al."How Does the Interaction of the Human Thermal Plume and Breathing Affect the Microenvironment and Macroenvironment of an Elevator Cabin?".INDOOR AIR 2024(2024).