Direct numerical simulation of a NACA0012 in full stall

This work aims at investigating the mechanisms of separation and the transition to turbulence in the separated shear-layer of aerodynamic profiles, while at the same time to gain insight into coherent structures formed in the separated zone at low-to-moderate Reynolds numbers. To do this, direct num...

Descripción completa

Detalles Bibliográficos
Autores: Rodríguez Pérez, Ivette María|||0000-0002-3749-277X, Lehmkuhl Barba, Oriol|||0000-0002-2670-1871, Borrell Pol, Ricard, Oliva Llena, Asensio|||0000-0002-2805-4794
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/21438
Acceso en línea:https://hdl.handle.net/2117/21438
https://dx.doi.org/10.1016/j.ijheatfluidflow.2013.05.002
Access Level:acceso abierto
Palabra clave:Fluid mechanics
Turbulence
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
id ES_dedffec35a2fdaaadd4bfdc1aaa0292e
oai_identifier_str oai:upcommons.upc.edu:2117/21438
network_acronym_str ES
network_name_str España
repository_id_str
spelling Direct numerical simulation of a NACA0012 in full stallRodríguez Pérez, Ivette María|||0000-0002-3749-277XLehmkuhl Barba, Oriol|||0000-0002-2670-1871Borrell Pol, RicardOliva Llena, Asensio|||0000-0002-2805-4794Fluid mechanicsTurbulenceMecànica de fluidsTurbulènciaÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluidsThis work aims at investigating the mechanisms of separation and the transition to turbulence in the separated shear-layer of aerodynamic profiles, while at the same time to gain insight into coherent structures formed in the separated zone at low-to-moderate Reynolds numbers. To do this, direct numerical simulations of the flow past a NACA0012 airfoil at Reynolds numbers Re = 50,000 (based on the free-stream velocity and the airfoil chord) and angles of attack AOA = 9.25 and AOA = 12 have been carried out. At low-to-moderate Reynolds numbers, NACA0012 exhibits a combination of leading-edge/trailing-edge stall which causes the massive separation of the flow on the suction side of the airfoil. The initially laminar shear layer undergoes transition to turbulence and vortices formed are shed forming a von Kármán like vortex street in the airfoil wake. The main characteristics of this flow together with its main features, including power spectra of a set of selected monitoring probes at different positions on the suction side and in the wake of the airfoil are provided and discussed in detail.Peer Reviewed20132013-10-1520142014-02-03journal articlehttp://purl.org/coar/resource_type/c_6501AOhttp://purl.org/coar/version/c_b1a7d7d4d402bcceinfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/21438https://dx.doi.org/10.1016/j.ijheatfluidflow.2013.05.002reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/214382026-05-27T15:37:01Z
dc.title.none.fl_str_mv Direct numerical simulation of a NACA0012 in full stall
title Direct numerical simulation of a NACA0012 in full stall
spellingShingle Direct numerical simulation of a NACA0012 in full stall
Rodríguez Pérez, Ivette María|||0000-0002-3749-277X
Fluid mechanics
Turbulence
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
title_short Direct numerical simulation of a NACA0012 in full stall
title_full Direct numerical simulation of a NACA0012 in full stall
title_fullStr Direct numerical simulation of a NACA0012 in full stall
title_full_unstemmed Direct numerical simulation of a NACA0012 in full stall
title_sort Direct numerical simulation of a NACA0012 in full stall
dc.creator.none.fl_str_mv Rodríguez Pérez, Ivette María|||0000-0002-3749-277X
Lehmkuhl Barba, Oriol|||0000-0002-2670-1871
Borrell Pol, Ricard
Oliva Llena, Asensio|||0000-0002-2805-4794
author Rodríguez Pérez, Ivette María|||0000-0002-3749-277X
author_facet Rodríguez Pérez, Ivette María|||0000-0002-3749-277X
Lehmkuhl Barba, Oriol|||0000-0002-2670-1871
Borrell Pol, Ricard
Oliva Llena, Asensio|||0000-0002-2805-4794
author_role author
author2 Lehmkuhl Barba, Oriol|||0000-0002-2670-1871
Borrell Pol, Ricard
Oliva Llena, Asensio|||0000-0002-2805-4794
author2_role author
author
author
dc.subject.none.fl_str_mv Fluid mechanics
Turbulence
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
topic Fluid mechanics
Turbulence
Mecànica de fluids
Turbulència
Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
description This work aims at investigating the mechanisms of separation and the transition to turbulence in the separated shear-layer of aerodynamic profiles, while at the same time to gain insight into coherent structures formed in the separated zone at low-to-moderate Reynolds numbers. To do this, direct numerical simulations of the flow past a NACA0012 airfoil at Reynolds numbers Re = 50,000 (based on the free-stream velocity and the airfoil chord) and angles of attack AOA = 9.25 and AOA = 12 have been carried out. At low-to-moderate Reynolds numbers, NACA0012 exhibits a combination of leading-edge/trailing-edge stall which causes the massive separation of the flow on the suction side of the airfoil. The initially laminar shear layer undergoes transition to turbulence and vortices formed are shed forming a von Kármán like vortex street in the airfoil wake. The main characteristics of this flow together with its main features, including power spectra of a set of selected monitoring probes at different positions on the suction side and in the wake of the airfoil are provided and discussed in detail.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-10-15
2014
2014-02-03
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AO
http://purl.org/coar/version/c_b1a7d7d4d402bcce
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/21438
https://dx.doi.org/10.1016/j.ijheatfluidflow.2013.05.002
url https://hdl.handle.net/2117/21438
https://dx.doi.org/10.1016/j.ijheatfluidflow.2013.05.002
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422014150737920
score 15,300724

Similares en LA Referencia