Spectral and wavelet analysis in the wake of an airfoil with Gurney flap

Autores
Giacopinelli, P.; Scarabino, Ana Elena; Bacchi, Federico Alfredo; Delnero, Juan Sebastian
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we identify the coherent vortices in the leeward wake of an HQ 17 airfoil with a Gurney flap. This high-lift device consists of a small plate perpendicular to the airfoil, at or near the trailing edge, with a height H of the order from 1% to 4% of the chord. The overall effect is to produce a significant increase in lift, together with a relatively minor increase in airfoil drag. Its geometry generates vortex shedding of spatial scale H, which modulates the wake and thus influence the global configuration of the flow. A numerical study was performed with the commercial software ANSYS Fluent. Simultaneously, experiments were carried out in the wind tunnel of the Aeronautical Departmental Area from the Engineering School of the National University of La Plata. With a Dantec StreamLine hot-wire anemometer, records of the instantaneous horizontal and vertical velocity components in the airfoil wake were obtained. Both the experimental data and those obtained by numerical simulation were analyzed with the continuous wavelet transform technique, in order to identify and characterize the coherent vortices in the wake. Results show the shed vortices structure and the organization degree of this periodic shedding.
Fil: Giacopinelli, P.. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Scarabino, Ana Elena. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Bacchi, Federico Alfredo. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Delnero, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Materia
AIRFOILS
CFD
HIGH-LIFT DEVICES
WAVELETS
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:11336/225048
Acceder
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spelling Spectral and wavelet analysis in the wake of an airfoil with Gurney flapGiacopinelli, P.Scarabino, Ana ElenaBacchi, Federico AlfredoDelnero, Juan SebastianAIRFOILSCFDHIGH-LIFT DEVICESWAVELETShttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2In this work we identify the coherent vortices in the leeward wake of an HQ 17 airfoil with a Gurney flap. This high-lift device consists of a small plate perpendicular to the airfoil, at or near the trailing edge, with a height H of the order from 1% to 4% of the chord. The overall effect is to produce a significant increase in lift, together with a relatively minor increase in airfoil drag. Its geometry generates vortex shedding of spatial scale H, which modulates the wake and thus influence the global configuration of the flow. A numerical study was performed with the commercial software ANSYS Fluent. Simultaneously, experiments were carried out in the wind tunnel of the Aeronautical Departmental Area from the Engineering School of the National University of La Plata. With a Dantec StreamLine hot-wire anemometer, records of the instantaneous horizontal and vertical velocity components in the airfoil wake were obtained. Both the experimental data and those obtained by numerical simulation were analyzed with the continuous wavelet transform technique, in order to identify and characterize the coherent vortices in the wake. Results show the shed vortices structure and the organization degree of this periodic shedding.Fil: Giacopinelli, P.. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; ArgentinaFil: Scarabino, Ana Elena. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; ArgentinaFil: Bacchi, Federico Alfredo. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; ArgentinaFil: Delnero, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; ArgentinaUniversitat Politècnica de Catalunya2023-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/225048Giacopinelli, P.; Scarabino, Ana Elena; Bacchi, Federico Alfredo; Delnero, Juan Sebastian; Spectral and wavelet analysis in the wake of an airfoil with Gurney flap; Universitat Politècnica de Catalunya; Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería; 39; 1; 3-2023; 1-130213-1315CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.scipedia.com/public/Giacopinelli_et_al_2010ainfo:eu-repo/semantics/altIdentifier/doi/10.23967/j.rimni.2023.03.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:24:25Zoai:ri.conicet.gov.ar:11336/225048instacron: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 11:24:25.403CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
title Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
spellingShingle Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
Giacopinelli, P.
AIRFOILS
CFD
HIGH-LIFT DEVICES
WAVELETS
title_short Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
title_full Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
title_fullStr Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
title_full_unstemmed Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
title_sort Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
dc.creator.none.fl_str_mv Giacopinelli, P.
Scarabino, Ana Elena
Bacchi, Federico Alfredo
Delnero, Juan Sebastian
author Giacopinelli, P.
author_facet Giacopinelli, P.
Scarabino, Ana Elena
Bacchi, Federico Alfredo
Delnero, Juan Sebastian
author_role author
author2 Scarabino, Ana Elena
Bacchi, Federico Alfredo
Delnero, Juan Sebastian
author2_role author
author
author
dc.subject.none.fl_str_mv AIRFOILS
CFD
HIGH-LIFT DEVICES
WAVELETS
topic AIRFOILS
CFD
HIGH-LIFT DEVICES
WAVELETS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In this work we identify the coherent vortices in the leeward wake of an HQ 17 airfoil with a Gurney flap. This high-lift device consists of a small plate perpendicular to the airfoil, at or near the trailing edge, with a height H of the order from 1% to 4% of the chord. The overall effect is to produce a significant increase in lift, together with a relatively minor increase in airfoil drag. Its geometry generates vortex shedding of spatial scale H, which modulates the wake and thus influence the global configuration of the flow. A numerical study was performed with the commercial software ANSYS Fluent. Simultaneously, experiments were carried out in the wind tunnel of the Aeronautical Departmental Area from the Engineering School of the National University of La Plata. With a Dantec StreamLine hot-wire anemometer, records of the instantaneous horizontal and vertical velocity components in the airfoil wake were obtained. Both the experimental data and those obtained by numerical simulation were analyzed with the continuous wavelet transform technique, in order to identify and characterize the coherent vortices in the wake. Results show the shed vortices structure and the organization degree of this periodic shedding.
Fil: Giacopinelli, P.. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Scarabino, Ana Elena. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Bacchi, Federico Alfredo. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Delnero, Juan Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
description In this work we identify the coherent vortices in the leeward wake of an HQ 17 airfoil with a Gurney flap. This high-lift device consists of a small plate perpendicular to the airfoil, at or near the trailing edge, with a height H of the order from 1% to 4% of the chord. The overall effect is to produce a significant increase in lift, together with a relatively minor increase in airfoil drag. Its geometry generates vortex shedding of spatial scale H, which modulates the wake and thus influence the global configuration of the flow. A numerical study was performed with the commercial software ANSYS Fluent. Simultaneously, experiments were carried out in the wind tunnel of the Aeronautical Departmental Area from the Engineering School of the National University of La Plata. With a Dantec StreamLine hot-wire anemometer, records of the instantaneous horizontal and vertical velocity components in the airfoil wake were obtained. Both the experimental data and those obtained by numerical simulation were analyzed with the continuous wavelet transform technique, in order to identify and characterize the coherent vortices in the wake. Results show the shed vortices structure and the organization degree of this periodic shedding.
publishDate 2023
dc.date.none.fl_str_mv 2023-03
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/11336/225048
Giacopinelli, P.; Scarabino, Ana Elena; Bacchi, Federico Alfredo; Delnero, Juan Sebastian; Spectral and wavelet analysis in the wake of an airfoil with Gurney flap; Universitat Politècnica de Catalunya; Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería; 39; 1; 3-2023; 1-13
0213-1315
CONICET Digital
CONICET
url http://hdl.handle.net/11336/225048
identifier_str_mv Giacopinelli, P.; Scarabino, Ana Elena; Bacchi, Federico Alfredo; Delnero, Juan Sebastian; Spectral and wavelet analysis in the wake of an airfoil with Gurney flap; Universitat Politècnica de Catalunya; Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería; 39; 1; 3-2023; 1-13
0213-1315
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.scipedia.com/public/Giacopinelli_et_al_2010a
info:eu-repo/semantics/altIdentifier/doi/10.23967/j.rimni.2023.03.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
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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