Influence of confinement on the oscillations of a free cylinder in a viscous flow

Autores
Gianorio, Luciano; D'angelo, María Verónica; Cachile, Mario Andres; Hulin, Jean Pierre; Auradou, Harold
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We demonstrate and study experimentally two instabilities of a horizontal free cylinder in a vertical viscous Hele-Shaw flow; we show that they depend critically on the confinement of the flow with a different influence of transverse and lateral confinement characterized respectively by the ratios of the diameter (resp. the length) of the cylinder to the gap (resp. the width) of the cell. The onset of the instabilities depends largely on the transverse confinement: for a parameter between 0.4 and 0.6, one observes transverse horizontal oscillations of the cylinder perpendicular to the walls: their frequency is constant with the lateral and transverse confinements at a given cylinder velocity. This instability is shown to be locally two-dimensional and controlled by the local relative velocity between the cylinder and the fluids: it occurs down to Reynolds numbers based on the cell gap ≃ 15, far below the corresponding 2D vortex shedding thresholds (150−250) for fixed cylinders between parallel planes. Above transverse confinements of the order of 0.55, we observe a fluttering motion with periodic oscillations of the tilt angle of the cylinder from the horizontal and of its horizontal position: their frequency decreases strongly as the lateral confinement increases but is independent of the transverse confinement and the cylinder velocity.
Fil: Gianorio, Luciano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: D'angelo, María Verónica. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cachile, Mario Andres. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hulin, Jean Pierre. Universite Paris Sud; Francia
Fil: Auradou, Harold. Universite Paris Sud; Francia
Materia
VISCOSITY
HELE SHAW FLOWS
REYNOLDS STRESS MODELING
VISCOUS FLOW INSTABILITIES
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:11336/35962
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/35962
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Influence of confinement on the oscillations of a free cylinder in a viscous flowGianorio, LucianoD'angelo, María VerónicaCachile, Mario AndresHulin, Jean PierreAuradou, HaroldVISCOSITYHELE SHAW FLOWSREYNOLDS STRESS MODELINGVISCOUS FLOW INSTABILITIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We demonstrate and study experimentally two instabilities of a horizontal free cylinder in a vertical viscous Hele-Shaw flow; we show that they depend critically on the confinement of the flow with a different influence of transverse and lateral confinement characterized respectively by the ratios of the diameter (resp. the length) of the cylinder to the gap (resp. the width) of the cell. The onset of the instabilities depends largely on the transverse confinement: for a parameter between 0.4 and 0.6, one observes transverse horizontal oscillations of the cylinder perpendicular to the walls: their frequency is constant with the lateral and transverse confinements at a given cylinder velocity. This instability is shown to be locally two-dimensional and controlled by the local relative velocity between the cylinder and the fluids: it occurs down to Reynolds numbers based on the cell gap ≃ 15, far below the corresponding 2D vortex shedding thresholds (150−250) for fixed cylinders between parallel planes. Above transverse confinements of the order of 0.55, we observe a fluttering motion with periodic oscillations of the tilt angle of the cylinder from the horizontal and of its horizontal position: their frequency decreases strongly as the lateral confinement increases but is independent of the transverse confinement and the cylinder velocity.Fil: Gianorio, Luciano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: D'angelo, María Verónica. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cachile, Mario Andres. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hulin, Jean Pierre. Universite Paris Sud; FranciaFil: Auradou, Harold. Universite Paris Sud; FranciaAmerican Institute of Physics2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35962Gianorio, Luciano; D'angelo, María Verónica; Cachile, Mario Andres; Hulin, Jean Pierre ; Auradou, Harold ; Influence of confinement on the oscillations of a free cylinder in a viscous flow; American Institute of Physics; Physics of Fluids; 26; 8; 8-2014; 1-13; 0841061070-6631CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.4893342info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.4893342info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:00:16Zoai:ri.conicet.gov.ar:11336/35962instacron: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:34982025-09-03 10:00:16.298CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of confinement on the oscillations of a free cylinder in a viscous flow
title Influence of confinement on the oscillations of a free cylinder in a viscous flow
spellingShingle Influence of confinement on the oscillations of a free cylinder in a viscous flow
Gianorio, Luciano
VISCOSITY
HELE SHAW FLOWS
REYNOLDS STRESS MODELING
VISCOUS FLOW INSTABILITIES
title_short Influence of confinement on the oscillations of a free cylinder in a viscous flow
title_full Influence of confinement on the oscillations of a free cylinder in a viscous flow
title_fullStr Influence of confinement on the oscillations of a free cylinder in a viscous flow
title_full_unstemmed Influence of confinement on the oscillations of a free cylinder in a viscous flow
title_sort Influence of confinement on the oscillations of a free cylinder in a viscous flow
dc.creator.none.fl_str_mv Gianorio, Luciano
D'angelo, María Verónica
Cachile, Mario Andres
Hulin, Jean Pierre
Auradou, Harold
author Gianorio, Luciano
author_facet Gianorio, Luciano
D'angelo, María Verónica
Cachile, Mario Andres
Hulin, Jean Pierre
Auradou, Harold
author_role author
author2 D'angelo, María Verónica
Cachile, Mario Andres
Hulin, Jean Pierre
Auradou, Harold
author2_role author
author
author
author
dc.subject.none.fl_str_mv VISCOSITY
HELE SHAW FLOWS
REYNOLDS STRESS MODELING
VISCOUS FLOW INSTABILITIES
topic VISCOSITY
HELE SHAW FLOWS
REYNOLDS STRESS MODELING
VISCOUS FLOW INSTABILITIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We demonstrate and study experimentally two instabilities of a horizontal free cylinder in a vertical viscous Hele-Shaw flow; we show that they depend critically on the confinement of the flow with a different influence of transverse and lateral confinement characterized respectively by the ratios of the diameter (resp. the length) of the cylinder to the gap (resp. the width) of the cell. The onset of the instabilities depends largely on the transverse confinement: for a parameter between 0.4 and 0.6, one observes transverse horizontal oscillations of the cylinder perpendicular to the walls: their frequency is constant with the lateral and transverse confinements at a given cylinder velocity. This instability is shown to be locally two-dimensional and controlled by the local relative velocity between the cylinder and the fluids: it occurs down to Reynolds numbers based on the cell gap ≃ 15, far below the corresponding 2D vortex shedding thresholds (150−250) for fixed cylinders between parallel planes. Above transverse confinements of the order of 0.55, we observe a fluttering motion with periodic oscillations of the tilt angle of the cylinder from the horizontal and of its horizontal position: their frequency decreases strongly as the lateral confinement increases but is independent of the transverse confinement and the cylinder velocity.
Fil: Gianorio, Luciano. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: D'angelo, María Verónica. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cachile, Mario Andres. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hulin, Jean Pierre. Universite Paris Sud; Francia
Fil: Auradou, Harold. Universite Paris Sud; Francia
description We demonstrate and study experimentally two instabilities of a horizontal free cylinder in a vertical viscous Hele-Shaw flow; we show that they depend critically on the confinement of the flow with a different influence of transverse and lateral confinement characterized respectively by the ratios of the diameter (resp. the length) of the cylinder to the gap (resp. the width) of the cell. The onset of the instabilities depends largely on the transverse confinement: for a parameter between 0.4 and 0.6, one observes transverse horizontal oscillations of the cylinder perpendicular to the walls: their frequency is constant with the lateral and transverse confinements at a given cylinder velocity. This instability is shown to be locally two-dimensional and controlled by the local relative velocity between the cylinder and the fluids: it occurs down to Reynolds numbers based on the cell gap ≃ 15, far below the corresponding 2D vortex shedding thresholds (150−250) for fixed cylinders between parallel planes. Above transverse confinements of the order of 0.55, we observe a fluttering motion with periodic oscillations of the tilt angle of the cylinder from the horizontal and of its horizontal position: their frequency decreases strongly as the lateral confinement increases but is independent of the transverse confinement and the cylinder velocity.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/35962
Gianorio, Luciano; D'angelo, María Verónica; Cachile, Mario Andres; Hulin, Jean Pierre ; Auradou, Harold ; Influence of confinement on the oscillations of a free cylinder in a viscous flow; American Institute of Physics; Physics of Fluids; 26; 8; 8-2014; 1-13; 084106
1070-6631
CONICET Digital
CONICET
url http://hdl.handle.net/11336/35962
identifier_str_mv Gianorio, Luciano; D'angelo, María Verónica; Cachile, Mario Andres; Hulin, Jean Pierre ; Auradou, Harold ; Influence of confinement on the oscillations of a free cylinder in a viscous flow; American Institute of Physics; Physics of Fluids; 26; 8; 8-2014; 1-13; 084106
1070-6631
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4893342
info:eu-repo/semantics/altIdentifier/url/http://aip.scitation.org/doi/10.1063/1.4893342
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
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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 13.13397

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