Three-Dimensional Simulation of Wind-Driven Ventilation Through a Windcatcher With Different Inlet Designs

Abdo, P; Taghipour, R; Huynh, BP

Three-Dimensional Simulation of Wind-Driven Ventilation Through a Windcatcher With Different Inlet Designs

Abdo, P

Taghipour, R Huynh, BP

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Publisher:: ASME International
Publication Type:: Journal Article
Citation:: Journal of Thermal Science and Engineering Applications, 2020, 12 (4)
Issue Date:: 2020-08-01

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Field	Value	Language
dc.contributor.author	Abdo, P https://orcid.org/0000-0001-9650-2141	en_US
dc.contributor.author	Taghipour, R	en_US
dc.contributor.author	Huynh, BP https://orcid.org/0000-0002-8786-8472	en_US
dc.date.available	2020-11-21T18:03:11Z
dc.date.issued	2020-08-01	en_US
dc.identifier.citation	Journal of Thermal Science and Engineering Applications, 2020, 12 (4)	en_US
dc.identifier.issn	1948-5085	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137168
dc.description.abstract	<jats:title>Abstract</jats:title> <jats:p>Windcatcher is an effective natural ventilation system, and its performance depends on several factors including wind speed and wind direction. It provides a comfortable and healthy indoor environment since the introduced fresh air decreases the moisture content and reduces the pollutant concentration. Since the wind speed and its direction are generally unpredictable, it is important to use special inlet forms and exits to increase the efficiency of a windcatcher. In this study, computational fluid dynamics (CFD) modeling is implemented using ansys fluent to investigate the airflow entering a three-dimensional room through a windcatcher with different inlet designs. Three designs are studied which are a uniform inlet, a divergent inlet, and a bulging-convergent inlet. The airflow pattern with all inlets provided adequate ventilation through the room. With all the applied wind velocities (1, 2, 3, and 6 m/s) at the domain's inlet, the divergent inlet shape has captured the highest airflow through the room and provided higher average velocity at 1.2 m high enhancing the thermal comfort where most of the human occupancy occurs. With 6 m/s wind velocity, the divergent inlet has captured 2.55% more flow rate compared to the uniform inlet and 4.70% compared to the bulging-convergent inlet, and it has also provided an average velocity at 1.2 m high in the room of 7.16% higher than the uniform inlet and 8.44% higher than the bulging-convergent inlet.</jats:p>	en_US
dc.language	en	en_US
dc.publisher	ASME International	en_US
dc.relation.ispartof	Journal of Thermal Science and Engineering Applications	en_US
dc.relation.isbasedon	10.1115/1.4045513	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Three-Dimensional Simulation of Wind-Driven Ventilation Through a Windcatcher With Different Inlet Designs	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	12	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Provost
pubs.organisational-group	/University of Technology Sydney/Provost/Jumbunna
utslib.copyright.status	open_access	*
pubs.issue	4	en_US
pubs.publication-status	Published online	en_US
pubs.volume	12	en_US

Abstract:

Abstract Windcatcher is an effective natural ventilation system, and its performance depends on several factors including wind speed and wind direction. It provides a comfortable and healthy indoor environment since the introduced fresh air decreases the moisture content and reduces the pollutant concentration. Since the wind speed and its direction are generally unpredictable, it is important to use special inlet forms and exits to increase the efficiency of a windcatcher. In this study, computational fluid dynamics (CFD) modeling is implemented using ansys fluent to investigate the airflow entering a three-dimensional room through a windcatcher with different inlet designs. Three designs are studied which are a uniform inlet, a divergent inlet, and a bulging-convergent inlet. The airflow pattern with all inlets provided adequate ventilation through the room. With all the applied wind velocities (1, 2, 3, and 6 m/s) at the domain's inlet, the divergent inlet shape has captured the highest airflow through the room and provided higher average velocity at 1.2 m high enhancing the thermal comfort where most of the human occupancy occurs. With 6 m/s wind velocity, the divergent inlet has captured 2.55% more flow rate compared to the uniform inlet and 4.70% compared to the bulging-convergent inlet, and it has also provided an average velocity at 1.2 m high in the room of 7.16% higher than the uniform inlet and 8.44% higher than the bulging-convergent inlet.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/137082