Experimental dynamic stall study of an airfoil in turbulent flow

Autores
Marañón Di Leo, Julio; Delnero, Juan Sebastián; Algozino, Santiago
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this study is to experimentally determine the fluid dynamic configuration of the dynamic stall of an airfoil in turbulent flow. Wind tunnel tests were carried out in order to characterize the airfoils behavior in static and static after a quick change in the angle of attack (“dynamic case”) using flow visualization, loads and hot-wire anemometry measurements at different Reynolds numbers and with one rate of change for the angle of attack. In all the tests, a Worthmann FX 63-137 airfoil model was used. First, with the visualizations made using a paint technique, for the different configurations, some differences in the flow pattern were found and points of interest in the airfoil were chosen. In those points, the sensors for the velocity measurements were placed. With the velocities acquired using a hot-wire system, autocorrelations, turbulence intensities, density power spectrums and wavelet maps were calculated and compared between the static and the dynamic case; different results were found and explained. Additionally, differences were traced in the turbulent intensities in the wake of the airfoil. Furthermore, a wavelets analysis was performed, and the flow scales obtained show differences for the same conditions analyzed before.
Laboratorio de Capa Límite y Fluidodinámica Ambiental
Materia
Ingeniería Mecánica
Wind tunnel
Aerodynamic
Detachments
Re-circulatory
Hot-wire anemometry
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:10915/101595

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/101595
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Experimental dynamic stall study of an airfoil in turbulent flowMarañón Di Leo, JulioDelnero, Juan SebastiánAlgozino, SantiagoIngeniería MecánicaWind tunnelAerodynamicDetachmentsRe-circulatoryHot-wire anemometryThe objective of this study is to experimentally determine the fluid dynamic configuration of the dynamic stall of an airfoil in turbulent flow. Wind tunnel tests were carried out in order to characterize the airfoils behavior in static and static after a quick change in the angle of attack (“dynamic case”) using flow visualization, loads and hot-wire anemometry measurements at different Reynolds numbers and with one rate of change for the angle of attack. In all the tests, a Worthmann FX 63-137 airfoil model was used. First, with the visualizations made using a paint technique, for the different configurations, some differences in the flow pattern were found and points of interest in the airfoil were chosen. In those points, the sensors for the velocity measurements were placed. With the velocities acquired using a hot-wire system, autocorrelations, turbulence intensities, density power spectrums and wavelet maps were calculated and compared between the static and the dynamic case; different results were found and explained. Additionally, differences were traced in the turbulent intensities in the wake of the airfoil. Furthermore, a wavelets analysis was performed, and the flow scales obtained show differences for the same conditions analyzed before.Laboratorio de Capa Límite y Fluidodinámica Ambiental2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf163-172http://sedici.unlp.edu.ar/handle/10915/101595enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/57058info:eu-repo/semantics/altIdentifier/url/https://laar.plapiqui.edu.ar/OJS/index.php/laar/article/view/318info:eu-repo/semantics/altIdentifier/issn/1851-8796info:eu-repo/semantics/altIdentifier/hdl/11336/57058info: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:UNLP2025-09-29T11:19:55Zoai:sedici.unlp.edu.ar:10915/101595Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:56.148SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Experimental dynamic stall study of an airfoil in turbulent flow
title Experimental dynamic stall study of an airfoil in turbulent flow
spellingShingle Experimental dynamic stall study of an airfoil in turbulent flow
Marañón Di Leo, Julio
Ingeniería Mecánica
Wind tunnel
Aerodynamic
Detachments
Re-circulatory
Hot-wire anemometry
title_short Experimental dynamic stall study of an airfoil in turbulent flow
title_full Experimental dynamic stall study of an airfoil in turbulent flow
title_fullStr Experimental dynamic stall study of an airfoil in turbulent flow
title_full_unstemmed Experimental dynamic stall study of an airfoil in turbulent flow
title_sort Experimental dynamic stall study of an airfoil in turbulent flow
dc.creator.none.fl_str_mv Marañón Di Leo, Julio
Delnero, Juan Sebastián
Algozino, Santiago
author Marañón Di Leo, Julio
author_facet Marañón Di Leo, Julio
Delnero, Juan Sebastián
Algozino, Santiago
author_role author
author2 Delnero, Juan Sebastián
Algozino, Santiago
author2_role author
author
dc.subject.none.fl_str_mv Ingeniería Mecánica
Wind tunnel
Aerodynamic
Detachments
Re-circulatory
Hot-wire anemometry
topic Ingeniería Mecánica
Wind tunnel
Aerodynamic
Detachments
Re-circulatory
Hot-wire anemometry
dc.description.none.fl_txt_mv The objective of this study is to experimentally determine the fluid dynamic configuration of the dynamic stall of an airfoil in turbulent flow. Wind tunnel tests were carried out in order to characterize the airfoils behavior in static and static after a quick change in the angle of attack (“dynamic case”) using flow visualization, loads and hot-wire anemometry measurements at different Reynolds numbers and with one rate of change for the angle of attack. In all the tests, a Worthmann FX 63-137 airfoil model was used. First, with the visualizations made using a paint technique, for the different configurations, some differences in the flow pattern were found and points of interest in the airfoil were chosen. In those points, the sensors for the velocity measurements were placed. With the velocities acquired using a hot-wire system, autocorrelations, turbulence intensities, density power spectrums and wavelet maps were calculated and compared between the static and the dynamic case; different results were found and explained. Additionally, differences were traced in the turbulent intensities in the wake of the airfoil. Furthermore, a wavelets analysis was performed, and the flow scales obtained show differences for the same conditions analyzed before.
Laboratorio de Capa Límite y Fluidodinámica Ambiental
description The objective of this study is to experimentally determine the fluid dynamic configuration of the dynamic stall of an airfoil in turbulent flow. Wind tunnel tests were carried out in order to characterize the airfoils behavior in static and static after a quick change in the angle of attack (“dynamic case”) using flow visualization, loads and hot-wire anemometry measurements at different Reynolds numbers and with one rate of change for the angle of attack. In all the tests, a Worthmann FX 63-137 airfoil model was used. First, with the visualizations made using a paint technique, for the different configurations, some differences in the flow pattern were found and points of interest in the airfoil were chosen. In those points, the sensors for the velocity measurements were placed. With the velocities acquired using a hot-wire system, autocorrelations, turbulence intensities, density power spectrums and wavelet maps were calculated and compared between the static and the dynamic case; different results were found and explained. Additionally, differences were traced in the turbulent intensities in the wake of the airfoil. Furthermore, a wavelets analysis was performed, and the flow scales obtained show differences for the same conditions analyzed before.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/101595
url http://sedici.unlp.edu.ar/handle/10915/101595
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/57058
info:eu-repo/semantics/altIdentifier/url/https://laar.plapiqui.edu.ar/OJS/index.php/laar/article/view/318
info:eu-repo/semantics/altIdentifier/issn/1851-8796
info:eu-repo/semantics/altIdentifier/hdl/11336/57058
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
163-172
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
institution UNLP
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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