Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel

Autores
Adotti, Marcelo Italo; Wittwer, Adrián Roberto; Rodriguez Aguirre, Juan Manuel; Marighetti, Jorge Omar; Iturri, Beatriz Angela; Castro, Hugo Guillermo; de Bortoli, Mario Eduardo; Alvarez y Alvarez, Gisela Marina
Año de publicación
2022
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Ahmed body is a standard model proposed for the study of road vehicles, serving as a reference point for calibrating wind tunnels, computer codes, and for extrapolating results for design or industrial purposes. Even though the model is a simple geometry, it reproduces the turbulent flow of the wake, boundary layer separations and flow re-entries, in a similar way to those found in real ground vehicles. Particularly, the study of turbulent wakes is of interest to evaluate possible effects of instability due to dynamic loads introduced by the wind, aiming to reduce fuel consumption. In this paper, measurements of the Ahmed body’s wake are reported. The experiments have been carried out in the wind tunnel “Jacek Gorecki” of the Universidad Nacional del Nordeste (UNNE), Argentina. The measurements were performed with a DANTEC hot wire anemometer. A previous calibration of a single probe was carried out within the range of speed measurements, and then time velocity series were obtained at the wake turbulent flow. The preliminary mean velocity results are evaluated and compared with a Laser Doppler Anemometry (LDA) experiment from specific literature. Spectral analysis of the velocity fluctuations for relevant measurement points is also presented.
Fil: Adotti, Marcelo Italo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Wittwer, Adrián Roberto. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Rodriguez Aguirre, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Marighetti, Jorge Omar. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Iturri, Beatriz Angela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Castro, Hugo Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: de Bortoli, Mario Eduardo. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Alvarez y Alvarez, Gisela Marina. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
13° Escola de Primavera de Transição e Turbulência
Blumenau
Brasil
Associação Brasileira de Engenharia e Ciências Mecânicas
Materia
AHMED BODY
TURBULENCE
CTA
WIND TUNNEL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235930
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/235930
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnelAdotti, Marcelo ItaloWittwer, Adrián RobertoRodriguez Aguirre, Juan ManuelMarighetti, Jorge OmarIturri, Beatriz AngelaCastro, Hugo Guillermode Bortoli, Mario EduardoAlvarez y Alvarez, Gisela MarinaAHMED BODYTURBULENCECTAWIND TUNNELhttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2The Ahmed body is a standard model proposed for the study of road vehicles, serving as a reference point for calibrating wind tunnels, computer codes, and for extrapolating results for design or industrial purposes. Even though the model is a simple geometry, it reproduces the turbulent flow of the wake, boundary layer separations and flow re-entries, in a similar way to those found in real ground vehicles. Particularly, the study of turbulent wakes is of interest to evaluate possible effects of instability due to dynamic loads introduced by the wind, aiming to reduce fuel consumption. In this paper, measurements of the Ahmed body’s wake are reported. The experiments have been carried out in the wind tunnel “Jacek Gorecki” of the Universidad Nacional del Nordeste (UNNE), Argentina. The measurements were performed with a DANTEC hot wire anemometer. A previous calibration of a single probe was carried out within the range of speed measurements, and then time velocity series were obtained at the wake turbulent flow. The preliminary mean velocity results are evaluated and compared with a Laser Doppler Anemometry (LDA) experiment from specific literature. Spectral analysis of the velocity fluctuations for relevant measurement points is also presented.Fil: Adotti, Marcelo Italo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Wittwer, Adrián Roberto. Universidad Nacional del Nordeste. Facultad de Ingeniería; ArgentinaFil: Rodriguez Aguirre, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Marighetti, Jorge Omar. Universidad Nacional del Nordeste. Facultad de Ingeniería; ArgentinaFil: Iturri, Beatriz Angela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Castro, Hugo Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: de Bortoli, Mario Eduardo. Universidad Nacional del Nordeste. Facultad de Ingeniería; ArgentinaFil: Alvarez y Alvarez, Gisela Marina. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina13° Escola de Primavera de Transição e TurbulênciaBlumenauBrasilAssociação Brasileira de Engenharia e Ciências MecânicasAssociação Brasileira de Engenharia e Ciências Mecânicas2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectOtroBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/235930Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel; 13° Escola de Primavera de Transição e Turbulência; Blumenau; Brasil; 2022; 1-10CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://abcm.org.br/proceedings/view/EPT22/0035info:eu-repo/semantics/altIdentifier/doi/10.26678/ABCM.EPTT2022.EPT22-0035Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:57Zoai:ri.conicet.gov.ar:11336/235930instacron: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:34982025-09-29 09:42:57.545CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
title Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
spellingShingle Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
Adotti, Marcelo Italo
AHMED BODY
TURBULENCE
CTA
WIND TUNNEL
title_short Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
title_full Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
title_fullStr Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
title_full_unstemmed Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
title_sort Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel
dc.creator.none.fl_str_mv Adotti, Marcelo Italo
Wittwer, Adrián Roberto
Rodriguez Aguirre, Juan Manuel
Marighetti, Jorge Omar
Iturri, Beatriz Angela
Castro, Hugo Guillermo
de Bortoli, Mario Eduardo
Alvarez y Alvarez, Gisela Marina
author Adotti, Marcelo Italo
author_facet Adotti, Marcelo Italo
Wittwer, Adrián Roberto
Rodriguez Aguirre, Juan Manuel
Marighetti, Jorge Omar
Iturri, Beatriz Angela
Castro, Hugo Guillermo
de Bortoli, Mario Eduardo
Alvarez y Alvarez, Gisela Marina
author_role author
author2 Wittwer, Adrián Roberto
Rodriguez Aguirre, Juan Manuel
Marighetti, Jorge Omar
Iturri, Beatriz Angela
Castro, Hugo Guillermo
de Bortoli, Mario Eduardo
Alvarez y Alvarez, Gisela Marina
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv AHMED BODY
TURBULENCE
CTA
WIND TUNNEL
topic AHMED BODY
TURBULENCE
CTA
WIND TUNNEL
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The Ahmed body is a standard model proposed for the study of road vehicles, serving as a reference point for calibrating wind tunnels, computer codes, and for extrapolating results for design or industrial purposes. Even though the model is a simple geometry, it reproduces the turbulent flow of the wake, boundary layer separations and flow re-entries, in a similar way to those found in real ground vehicles. Particularly, the study of turbulent wakes is of interest to evaluate possible effects of instability due to dynamic loads introduced by the wind, aiming to reduce fuel consumption. In this paper, measurements of the Ahmed body’s wake are reported. The experiments have been carried out in the wind tunnel “Jacek Gorecki” of the Universidad Nacional del Nordeste (UNNE), Argentina. The measurements were performed with a DANTEC hot wire anemometer. A previous calibration of a single probe was carried out within the range of speed measurements, and then time velocity series were obtained at the wake turbulent flow. The preliminary mean velocity results are evaluated and compared with a Laser Doppler Anemometry (LDA) experiment from specific literature. Spectral analysis of the velocity fluctuations for relevant measurement points is also presented.
Fil: Adotti, Marcelo Italo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Wittwer, Adrián Roberto. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Rodriguez Aguirre, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Marighetti, Jorge Omar. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Iturri, Beatriz Angela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Castro, Hugo Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado e Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: de Bortoli, Mario Eduardo. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
Fil: Alvarez y Alvarez, Gisela Marina. Universidad Nacional del Nordeste. Facultad de Ingeniería; Argentina
13° Escola de Primavera de Transição e Turbulência
Blumenau
Brasil
Associação Brasileira de Engenharia e Ciências Mecânicas
description The Ahmed body is a standard model proposed for the study of road vehicles, serving as a reference point for calibrating wind tunnels, computer codes, and for extrapolating results for design or industrial purposes. Even though the model is a simple geometry, it reproduces the turbulent flow of the wake, boundary layer separations and flow re-entries, in a similar way to those found in real ground vehicles. Particularly, the study of turbulent wakes is of interest to evaluate possible effects of instability due to dynamic loads introduced by the wind, aiming to reduce fuel consumption. In this paper, measurements of the Ahmed body’s wake are reported. The experiments have been carried out in the wind tunnel “Jacek Gorecki” of the Universidad Nacional del Nordeste (UNNE), Argentina. The measurements were performed with a DANTEC hot wire anemometer. A previous calibration of a single probe was carried out within the range of speed measurements, and then time velocity series were obtained at the wake turbulent flow. The preliminary mean velocity results are evaluated and compared with a Laser Doppler Anemometry (LDA) experiment from specific literature. Spectral analysis of the velocity fluctuations for relevant measurement points is also presented.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Otro
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235930
Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel; 13° Escola de Primavera de Transição e Turbulência; Blumenau; Brasil; 2022; 1-10
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235930
identifier_str_mv Hot-wire measurements on the Ahmed body turbulent wake in a low-speed wind tunnel; 13° Escola de Primavera de Transição e Turbulência; Blumenau; Brasil; 2022; 1-10
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://abcm.org.br/proceedings/view/EPT22/0035
info:eu-repo/semantics/altIdentifier/doi/10.26678/ABCM.EPTT2022.EPT22-0035
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
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dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas
publisher.none.fl_str_mv Associação Brasileira de Engenharia e Ciências Mecânicas
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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