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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/225048
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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 Técnicas2025-09-29T09:55:20Zoai: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:34982025-09-29 09:55:20.439CONICET 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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1844613668669489152 |
score |
13.070432 |