Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings

Autores
Andrioli Medinilha Carvalho, Talita; Marques da Silva, Fernando Vítor; Bre, Facundo; Gimenez, Juan Marcelo; Chebel Labaki, Lucila
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recognizing the urgent need for mitigating global warming, natural ventilation presents a potential strategy to reduce cooling energy demands, enhance thermal comfort, and contribute to indoor air quality. H-shaped buildings are prevalent worldwide, and they constitute the majority of the social housing construction in Brazil. Research suggests that the inadequate design of these buildings can result in poor ventilation; however, investigations about their natural ventilation performance are limited. Thus, the present contribution aims to determine the impact of the geometric characteristics of H-shaped buildings on the pressure distribution through wind tunnel experiments. Three models were tested in the wind tunnel experiments, representing different proportions. Their scales were configured to comply with the 5% obstruction limit allowed for wind tunnel testing, which was performed for 20 wind attack angles. Moreover, a scour test was carried out to allow a better understanding of the wind flow. Python scripting was developed to automate data processing, which is openly available in this paper. The results indicate that the proportion of the model influences the pressure distribution on roofs and leeward walls. Additionally, the depth of the recessed cavity affects its side surfaces and can result in a mirrored behavior on the frontal face of deep cavities (i.e., the wind direction is 45°). The model height influences the windward surfaces in its lower portion, since taller models present a recirculation vortex that modifies the pressure near the ground.
Fil: Andrioli Medinilha Carvalho, Talita. Universidade Estadual de Campinas; Brasil
Fil: Marques da Silva, Fernando Vítor. National Laboratory for Civil Engineering; Portugal
Fil: Bre, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina. Universitat Technische Darmstadt; Alemania
Fil: Gimenez, Juan Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina
Fil: Chebel Labaki, Lucila. Universidade Estadual de Campinas; Brasil
Materia
wind tunnel experiment
natural ventilation
pressure coefficient
reentrant bay
recessed cavity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/258281
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/258281
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network_name_str CONICET Digital (CONICET)
spelling Experimental Study of Wind Pressures on Low-Rise H-Shaped BuildingsAndrioli Medinilha Carvalho, TalitaMarques da Silva, Fernando VítorBre, FacundoGimenez, Juan MarceloChebel Labaki, Lucilawind tunnel experimentnatural ventilationpressure coefficientreentrant bayrecessed cavityhttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2Recognizing the urgent need for mitigating global warming, natural ventilation presents a potential strategy to reduce cooling energy demands, enhance thermal comfort, and contribute to indoor air quality. H-shaped buildings are prevalent worldwide, and they constitute the majority of the social housing construction in Brazil. Research suggests that the inadequate design of these buildings can result in poor ventilation; however, investigations about their natural ventilation performance are limited. Thus, the present contribution aims to determine the impact of the geometric characteristics of H-shaped buildings on the pressure distribution through wind tunnel experiments. Three models were tested in the wind tunnel experiments, representing different proportions. Their scales were configured to comply with the 5% obstruction limit allowed for wind tunnel testing, which was performed for 20 wind attack angles. Moreover, a scour test was carried out to allow a better understanding of the wind flow. Python scripting was developed to automate data processing, which is openly available in this paper. The results indicate that the proportion of the model influences the pressure distribution on roofs and leeward walls. Additionally, the depth of the recessed cavity affects its side surfaces and can result in a mirrored behavior on the frontal face of deep cavities (i.e., the wind direction is 45°). The model height influences the windward surfaces in its lower portion, since taller models present a recirculation vortex that modifies the pressure near the ground.Fil: Andrioli Medinilha Carvalho, Talita. Universidade Estadual de Campinas; BrasilFil: Marques da Silva, Fernando Vítor. National Laboratory for Civil Engineering; PortugalFil: Bre, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina. Universitat Technische Darmstadt; AlemaniaFil: Gimenez, Juan Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; ArgentinaFil: Chebel Labaki, Lucila. Universidade Estadual de Campinas; BrasilMDPI2024-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/258281Andrioli Medinilha Carvalho, Talita; Marques da Silva, Fernando Vítor; Bre, Facundo; Gimenez, Juan Marcelo; Chebel Labaki, Lucila; Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings; MDPI; Buildings; 14; 3; 3-2024; 1-202075-5309CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-5309/14/3/762info:eu-repo/semantics/altIdentifier/doi/10.3390/buildings14030762info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:09:16Zoai:ri.conicet.gov.ar:11336/258281instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:09:16.545CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
title Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
spellingShingle Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
Andrioli Medinilha Carvalho, Talita
wind tunnel experiment
natural ventilation
pressure coefficient
reentrant bay
recessed cavity
title_short Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
title_full Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
title_fullStr Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
title_full_unstemmed Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
title_sort Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings
dc.creator.none.fl_str_mv Andrioli Medinilha Carvalho, Talita
Marques da Silva, Fernando Vítor
Bre, Facundo
Gimenez, Juan Marcelo
Chebel Labaki, Lucila
author Andrioli Medinilha Carvalho, Talita
author_facet Andrioli Medinilha Carvalho, Talita
Marques da Silva, Fernando Vítor
Bre, Facundo
Gimenez, Juan Marcelo
Chebel Labaki, Lucila
author_role author
author2 Marques da Silva, Fernando Vítor
Bre, Facundo
Gimenez, Juan Marcelo
Chebel Labaki, Lucila
author2_role author
author
author
author
dc.subject.none.fl_str_mv wind tunnel experiment
natural ventilation
pressure coefficient
reentrant bay
recessed cavity
topic wind tunnel experiment
natural ventilation
pressure coefficient
reentrant bay
recessed cavity
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Recognizing the urgent need for mitigating global warming, natural ventilation presents a potential strategy to reduce cooling energy demands, enhance thermal comfort, and contribute to indoor air quality. H-shaped buildings are prevalent worldwide, and they constitute the majority of the social housing construction in Brazil. Research suggests that the inadequate design of these buildings can result in poor ventilation; however, investigations about their natural ventilation performance are limited. Thus, the present contribution aims to determine the impact of the geometric characteristics of H-shaped buildings on the pressure distribution through wind tunnel experiments. Three models were tested in the wind tunnel experiments, representing different proportions. Their scales were configured to comply with the 5% obstruction limit allowed for wind tunnel testing, which was performed for 20 wind attack angles. Moreover, a scour test was carried out to allow a better understanding of the wind flow. Python scripting was developed to automate data processing, which is openly available in this paper. The results indicate that the proportion of the model influences the pressure distribution on roofs and leeward walls. Additionally, the depth of the recessed cavity affects its side surfaces and can result in a mirrored behavior on the frontal face of deep cavities (i.e., the wind direction is 45°). The model height influences the windward surfaces in its lower portion, since taller models present a recirculation vortex that modifies the pressure near the ground.
Fil: Andrioli Medinilha Carvalho, Talita. Universidade Estadual de Campinas; Brasil
Fil: Marques da Silva, Fernando Vítor. National Laboratory for Civil Engineering; Portugal
Fil: Bre, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina. Universitat Technische Darmstadt; Alemania
Fil: Gimenez, Juan Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina
Fil: Chebel Labaki, Lucila. Universidade Estadual de Campinas; Brasil
description Recognizing the urgent need for mitigating global warming, natural ventilation presents a potential strategy to reduce cooling energy demands, enhance thermal comfort, and contribute to indoor air quality. H-shaped buildings are prevalent worldwide, and they constitute the majority of the social housing construction in Brazil. Research suggests that the inadequate design of these buildings can result in poor ventilation; however, investigations about their natural ventilation performance are limited. Thus, the present contribution aims to determine the impact of the geometric characteristics of H-shaped buildings on the pressure distribution through wind tunnel experiments. Three models were tested in the wind tunnel experiments, representing different proportions. Their scales were configured to comply with the 5% obstruction limit allowed for wind tunnel testing, which was performed for 20 wind attack angles. Moreover, a scour test was carried out to allow a better understanding of the wind flow. Python scripting was developed to automate data processing, which is openly available in this paper. The results indicate that the proportion of the model influences the pressure distribution on roofs and leeward walls. Additionally, the depth of the recessed cavity affects its side surfaces and can result in a mirrored behavior on the frontal face of deep cavities (i.e., the wind direction is 45°). The model height influences the windward surfaces in its lower portion, since taller models present a recirculation vortex that modifies the pressure near the ground.
publishDate 2024
dc.date.none.fl_str_mv 2024-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/258281
Andrioli Medinilha Carvalho, Talita; Marques da Silva, Fernando Vítor; Bre, Facundo; Gimenez, Juan Marcelo; Chebel Labaki, Lucila; Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings; MDPI; Buildings; 14; 3; 3-2024; 1-20
2075-5309
CONICET Digital
CONICET
url http://hdl.handle.net/11336/258281
identifier_str_mv Andrioli Medinilha Carvalho, Talita; Marques da Silva, Fernando Vítor; Bre, Facundo; Gimenez, Juan Marcelo; Chebel Labaki, Lucila; Experimental Study of Wind Pressures on Low-Rise H-Shaped Buildings; MDPI; Buildings; 14; 3; 3-2024; 1-20
2075-5309
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-5309/14/3/762
info:eu-repo/semantics/altIdentifier/doi/10.3390/buildings14030762
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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