Spatiotemporal spectral analysis of a forced cylinder wake

Autores
D'adamo, Juan Gastón Leonel; Godoy Diana, Ramiro; Wesfreid, José Eduardo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at Re=100. Two-dimensional particle image velocimetry on the midplane perpendicular to the axis of a cylinder is used to characterize the spatial development of the flow and its stability properties. The lock-in phenomenon that determines the boundaries between regions of the forcing parameter space where the wake is globally unstable or convectively unstable [see Thiria and Wesfreid, J. Fluids Struct.0889-974610.1016/j. jfluidstructs.2009.04.002 25, 654 (2009) for a review] is scrutinized using the experimental data. A method based on the analysis of power density spectra of the flow allows us to give a detailed description of the forced wake, shedding light on the energy distribution in the different frequency components and in particular on a cascade-like mechanism evidenced for a high amplitude of the forcing oscillation. In addition, a calculation of the drag from the velocity field is performed, allowing us to relate the resulting force on the body to the wake properties.
Fil: D'adamo, Juan Gastón Leonel. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Mecánica. Laboratorio de Fluidodinámica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Godoy Diana, Ramiro. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; Francia
Fil: Wesfreid, José Eduardo. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; Francia
Materia
WAKES
FORCING
FLOWS
SPATIOTEMPORAL
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:11336/193741
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spatiotemporal spectral analysis of a forced cylinder wakeD'adamo, Juan Gastón LeonelGodoy Diana, RamiroWesfreid, José EduardoWAKESFORCINGFLOWSSPATIOTEMPORALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at Re=100. Two-dimensional particle image velocimetry on the midplane perpendicular to the axis of a cylinder is used to characterize the spatial development of the flow and its stability properties. The lock-in phenomenon that determines the boundaries between regions of the forcing parameter space where the wake is globally unstable or convectively unstable [see Thiria and Wesfreid, J. Fluids Struct.0889-974610.1016/j. jfluidstructs.2009.04.002 25, 654 (2009) for a review] is scrutinized using the experimental data. A method based on the analysis of power density spectra of the flow allows us to give a detailed description of the forced wake, shedding light on the energy distribution in the different frequency components and in particular on a cascade-like mechanism evidenced for a high amplitude of the forcing oscillation. In addition, a calculation of the drag from the velocity field is performed, allowing us to relate the resulting force on the body to the wake properties.Fil: D'adamo, Juan Gastón Leonel. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Mecánica. Laboratorio de Fluidodinámica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Godoy Diana, Ramiro. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; FranciaFil: Wesfreid, José Eduardo. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; FranciaAmerican Physical Society2011-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/193741D'adamo, Juan Gastón Leonel; Godoy Diana, Ramiro; Wesfreid, José Eduardo; Spatiotemporal spectral analysis of a forced cylinder wake; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 84; 5; 11-2011; 1-71063-651X1539-3755CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pre/abstract/10.1103/PhysRevE.84.056308info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.84.056308info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T10:52:19Zoai:ri.conicet.gov.ar:11336/193741instacron: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:34982025-11-05 10:52:20.089CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatiotemporal spectral analysis of a forced cylinder wake
title Spatiotemporal spectral analysis of a forced cylinder wake
spellingShingle Spatiotemporal spectral analysis of a forced cylinder wake
D'adamo, Juan Gastón Leonel
WAKES
FORCING
FLOWS
SPATIOTEMPORAL
title_short Spatiotemporal spectral analysis of a forced cylinder wake
title_full Spatiotemporal spectral analysis of a forced cylinder wake
title_fullStr Spatiotemporal spectral analysis of a forced cylinder wake
title_full_unstemmed Spatiotemporal spectral analysis of a forced cylinder wake
title_sort Spatiotemporal spectral analysis of a forced cylinder wake
dc.creator.none.fl_str_mv D'adamo, Juan Gastón Leonel
Godoy Diana, Ramiro
Wesfreid, José Eduardo
author D'adamo, Juan Gastón Leonel
author_facet D'adamo, Juan Gastón Leonel
Godoy Diana, Ramiro
Wesfreid, José Eduardo
author_role author
author2 Godoy Diana, Ramiro
Wesfreid, José Eduardo
author2_role author
author
dc.subject.none.fl_str_mv WAKES
FORCING
FLOWS
SPATIOTEMPORAL
topic WAKES
FORCING
FLOWS
SPATIOTEMPORAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at Re=100. Two-dimensional particle image velocimetry on the midplane perpendicular to the axis of a cylinder is used to characterize the spatial development of the flow and its stability properties. The lock-in phenomenon that determines the boundaries between regions of the forcing parameter space where the wake is globally unstable or convectively unstable [see Thiria and Wesfreid, J. Fluids Struct.0889-974610.1016/j. jfluidstructs.2009.04.002 25, 654 (2009) for a review] is scrutinized using the experimental data. A method based on the analysis of power density spectra of the flow allows us to give a detailed description of the forced wake, shedding light on the energy distribution in the different frequency components and in particular on a cascade-like mechanism evidenced for a high amplitude of the forcing oscillation. In addition, a calculation of the drag from the velocity field is performed, allowing us to relate the resulting force on the body to the wake properties.
Fil: D'adamo, Juan Gastón Leonel. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Ingeniería Mecánica. Laboratorio de Fluidodinámica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Godoy Diana, Ramiro. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; Francia
Fil: Wesfreid, José Eduardo. Centre National de la Recherche Scientifique. Laboratoire Pmmh-umr 7636; Francia
description The wake of a circular cylinder performing rotary oscillations is studied using hydrodynamic tunnel experiments at Re=100. Two-dimensional particle image velocimetry on the midplane perpendicular to the axis of a cylinder is used to characterize the spatial development of the flow and its stability properties. The lock-in phenomenon that determines the boundaries between regions of the forcing parameter space where the wake is globally unstable or convectively unstable [see Thiria and Wesfreid, J. Fluids Struct.0889-974610.1016/j. jfluidstructs.2009.04.002 25, 654 (2009) for a review] is scrutinized using the experimental data. A method based on the analysis of power density spectra of the flow allows us to give a detailed description of the forced wake, shedding light on the energy distribution in the different frequency components and in particular on a cascade-like mechanism evidenced for a high amplitude of the forcing oscillation. In addition, a calculation of the drag from the velocity field is performed, allowing us to relate the resulting force on the body to the wake properties.
publishDate 2011
dc.date.none.fl_str_mv 2011-11
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/11336/193741
D'adamo, Juan Gastón Leonel; Godoy Diana, Ramiro; Wesfreid, José Eduardo; Spatiotemporal spectral analysis of a forced cylinder wake; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 84; 5; 11-2011; 1-7
1063-651X
1539-3755
CONICET Digital
CONICET
url http://hdl.handle.net/11336/193741
identifier_str_mv D'adamo, Juan Gastón Leonel; Godoy Diana, Ramiro; Wesfreid, José Eduardo; Spatiotemporal spectral analysis of a forced cylinder wake; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 84; 5; 11-2011; 1-7
1063-651X
1539-3755
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://journals.aps.org/pre/abstract/10.1103/PhysRevE.84.056308
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.84.056308
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
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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 13.087074

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