Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building

The concentration distribution of urban air pollutants is closely related to people's health. As an important utilization form of urban wind power, rooftop wind turbines have been widely used in cities. The wake effect of the rooftop wind turbines will change the flow behind buildings and then...

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Autores principales:	Shuaibin Zhang, Haoze Yang, Bowen Du, Mingwei Ge
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Urban wind power Actuator disk model Wind-turbine wake Pollutant dispersion Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/78296f9f52db4e539b64ff5e5b67d1e8
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id	oai:doaj.org-article:78296f9f52db4e539b64ff5e5b67d1e8
record_format	dspace
spelling	oai:doaj.org-article:78296f9f52db4e539b64ff5e5b67d1e82021-11-30T04:15:43ZEffects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building2095-034910.1016/j.taml.2021.100296https://doaj.org/article/78296f9f52db4e539b64ff5e5b67d1e82021-07-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2095034921001033https://doaj.org/toc/2095-0349The concentration distribution of urban air pollutants is closely related to people's health. As an important utilization form of urban wind power, rooftop wind turbines have been widely used in cities. The wake effect of the rooftop wind turbines will change the flow behind buildings and then affect the pollutant dispersion. To this end, the pollutant dispersion behind the building is studied via the computational fluid dynamics method. The actuator disk model and idealized cube are adopted to model the wind turbine and the building, respectively. The study shows that the rooftop wind turbine can reduce the pollutant mass fraction near the ground and the pedestrian level. Due to the wake effect of the rooftop wind turbine, the turbulent fluctuation behind the building is weakened, and the spanwise pollutant dispersion is suppressed. Besides, the rooftop wind turbine weakens the downwash movement of the building, which enhances the vertical pollutant dispersion.Shuaibin ZhangHaoze YangBowen DuMingwei GeElsevierarticleUrban wind powerActuator disk modelWind-turbine wakePollutant dispersionEngineering (General). Civil engineering (General)TA1-2040ENTheoretical and Applied Mechanics Letters, Vol 11, Iss 5, Pp 100296- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Urban wind power Actuator disk model Wind-turbine wake Pollutant dispersion Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Urban wind power Actuator disk model Wind-turbine wake Pollutant dispersion Engineering (General). Civil engineering (General) TA1-2040 Shuaibin Zhang Haoze Yang Bowen Du Mingwei Ge Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
description	The concentration distribution of urban air pollutants is closely related to people's health. As an important utilization form of urban wind power, rooftop wind turbines have been widely used in cities. The wake effect of the rooftop wind turbines will change the flow behind buildings and then affect the pollutant dispersion. To this end, the pollutant dispersion behind the building is studied via the computational fluid dynamics method. The actuator disk model and idealized cube are adopted to model the wind turbine and the building, respectively. The study shows that the rooftop wind turbine can reduce the pollutant mass fraction near the ground and the pedestrian level. Due to the wake effect of the rooftop wind turbine, the turbulent fluctuation behind the building is weakened, and the spanwise pollutant dispersion is suppressed. Besides, the rooftop wind turbine weakens the downwash movement of the building, which enhances the vertical pollutant dispersion.
format	article
author	Shuaibin Zhang Haoze Yang Bowen Du Mingwei Ge
author_facet	Shuaibin Zhang Haoze Yang Bowen Du Mingwei Ge
author_sort	Shuaibin Zhang
title	Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
title_short	Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
title_full	Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
title_fullStr	Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
title_full_unstemmed	Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
title_sort	effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/78296f9f52db4e539b64ff5e5b67d1e8
work_keys_str_mv	AT shuaibinzhang effectsofarooftopwindturbineonthedispersionofairpollutantbehindacubeshapedbuilding AT haozeyang effectsofarooftopwindturbineonthedispersionofairpollutantbehindacubeshapedbuilding AT bowendu effectsofarooftopwindturbineonthedispersionofairpollutantbehindacubeshapedbuilding AT mingweige effectsofarooftopwindturbineonthedispersionofairpollutantbehindacubeshapedbuilding
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Effects of a rooftop wind turbine on the dispersion of air pollutant behind a cube-shaped building

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