Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2

Autores
Colman Lerner, Jorge León; Marañón Di Leo, Julio; Delnero, Juan Sebastián; Martínez, Mariano Álvaro; Boldes, Ulfilas; Bacchi, Federico
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Following the work performed in Part 1, new wind tunnel experiments were conducted in order to investigate the influence of different sizes of Gurney mini-flaps upon the aerodynamic behavior of a low Reynolds number airfoil HQ 17. The airfoil, with and without the Gurney mini-flaps, are immersed in a low Reynolds number turbulent flow. Lift and drag coefficients were calculated for the plain wing and for the wing with mini-flaps of 1%, 1.5%, 2% and 2.5% height of the chord and plotted as a function of the angle of attack (α). The experimental data, including the power density spectrum of the instantaneous longitudinal and vertical velocities and load, show that the Gurney mini-flap acts enhancing the lift coefficient of the airfoil coupled with an increased drag, primarily due to the particular mini-flaps wake structure. We also found that the airfoil performance, for the four mini-flaps tested, is almost independent of the scales of the incoming turbulence.
Facultad de Ingeniería
Materia
Ingeniería
Flow control
Low Reynolds Number Airfoils
Turbulence
Aerodynamics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/115930

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network_name_str SEDICI (UNLP)
spelling Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2Colman Lerner, Jorge LeónMarañón Di Leo, JulioDelnero, Juan SebastiánMartínez, Mariano ÁlvaroBoldes, UlfilasBacchi, FedericoIngenieríaFlow controlLow Reynolds Number AirfoilsTurbulenceAerodynamicsFollowing the work performed in Part 1, new wind tunnel experiments were conducted in order to investigate the influence of different sizes of Gurney mini-flaps upon the aerodynamic behavior of a low Reynolds number airfoil HQ 17. The airfoil, with and without the Gurney mini-flaps, are immersed in a low Reynolds number turbulent flow. Lift and drag coefficients were calculated for the plain wing and for the wing with mini-flaps of 1%, 1.5%, 2% and 2.5% height of the chord and plotted as a function of the angle of attack (α). The experimental data, including the power density spectrum of the instantaneous longitudinal and vertical velocities and load, show that the Gurney mini-flap acts enhancing the lift coefficient of the airfoil coupled with an increased drag, primarily due to the particular mini-flaps wake structure. We also found that the airfoil performance, for the four mini-flaps tested, is almost independent of the scales of the incoming turbulence.Facultad de Ingeniería2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf75-80http://sedici.unlp.edu.ar/handle/10915/115930enginfo:eu-repo/semantics/altIdentifier/url/http://www.laar.plapiqui.edu.ar/OJS/public/site/volumens/indexes/artic_v4001/Vol40_1_75.pdfinfo:eu-repo/semantics/altIdentifier/issn/0327-0793info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:27:04Zoai:sedici.unlp.edu.ar:10915/115930Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:27:04.547SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
title Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
spellingShingle Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
Colman Lerner, Jorge León
Ingeniería
Flow control
Low Reynolds Number Airfoils
Turbulence
Aerodynamics
title_short Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
title_full Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
title_fullStr Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
title_full_unstemmed Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
title_sort Lift and drag coefficients behavior at low Reynolds number in an airfoil with miniflaps gurney submitted to a turbulent flow: part 2
dc.creator.none.fl_str_mv Colman Lerner, Jorge León
Marañón Di Leo, Julio
Delnero, Juan Sebastián
Martínez, Mariano Álvaro
Boldes, Ulfilas
Bacchi, Federico
author Colman Lerner, Jorge León
author_facet Colman Lerner, Jorge León
Marañón Di Leo, Julio
Delnero, Juan Sebastián
Martínez, Mariano Álvaro
Boldes, Ulfilas
Bacchi, Federico
author_role author
author2 Marañón Di Leo, Julio
Delnero, Juan Sebastián
Martínez, Mariano Álvaro
Boldes, Ulfilas
Bacchi, Federico
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ingeniería
Flow control
Low Reynolds Number Airfoils
Turbulence
Aerodynamics
topic Ingeniería
Flow control
Low Reynolds Number Airfoils
Turbulence
Aerodynamics
dc.description.none.fl_txt_mv Following the work performed in Part 1, new wind tunnel experiments were conducted in order to investigate the influence of different sizes of Gurney mini-flaps upon the aerodynamic behavior of a low Reynolds number airfoil HQ 17. The airfoil, with and without the Gurney mini-flaps, are immersed in a low Reynolds number turbulent flow. Lift and drag coefficients were calculated for the plain wing and for the wing with mini-flaps of 1%, 1.5%, 2% and 2.5% height of the chord and plotted as a function of the angle of attack (α). The experimental data, including the power density spectrum of the instantaneous longitudinal and vertical velocities and load, show that the Gurney mini-flap acts enhancing the lift coefficient of the airfoil coupled with an increased drag, primarily due to the particular mini-flaps wake structure. We also found that the airfoil performance, for the four mini-flaps tested, is almost independent of the scales of the incoming turbulence.
Facultad de Ingeniería
description Following the work performed in Part 1, new wind tunnel experiments were conducted in order to investigate the influence of different sizes of Gurney mini-flaps upon the aerodynamic behavior of a low Reynolds number airfoil HQ 17. The airfoil, with and without the Gurney mini-flaps, are immersed in a low Reynolds number turbulent flow. Lift and drag coefficients were calculated for the plain wing and for the wing with mini-flaps of 1%, 1.5%, 2% and 2.5% height of the chord and plotted as a function of the angle of attack (α). The experimental data, including the power density spectrum of the instantaneous longitudinal and vertical velocities and load, show that the Gurney mini-flap acts enhancing the lift coefficient of the airfoil coupled with an increased drag, primarily due to the particular mini-flaps wake structure. We also found that the airfoil performance, for the four mini-flaps tested, is almost independent of the scales of the incoming turbulence.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/115930
url http://sedici.unlp.edu.ar/handle/10915/115930
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.laar.plapiqui.edu.ar/OJS/public/site/volumens/indexes/artic_v4001/Vol40_1_75.pdf
info:eu-repo/semantics/altIdentifier/issn/0327-0793
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
75-80
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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