Preferential Concentration of Free-Falling Heavy Particles in Turbulence

Autores
Falkinhoff, F.; Obligado, M.; Bourgoin, M.; Mininni, Pablo Daniel
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a sweep-stick mechanism for heavy particles transported by a turbulent flow under the action of gravity. Direct numerical simulations show that these particles preferentially explore regions of the flow with close to zero Lagrangian acceleration. However, the actual Lagrangian acceleration of the fluid elements where particles accumulate is not zero, and has a dependence on the Stokes number, the gravity acceleration, and the settling velocity of the particles.
Fil: Falkinhoff, F.. Universidad de Buenos Aires; Argentina. Universite Lyon 2; Francia
Fil: Obligado, M.. Centre National de la Recherche Scientifique; Francia
Fil: Bourgoin, M.. Universite Lyon 2; Francia
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
MULTIPHASE FLOWS
TURBULENCE
PARTICLE LADEN FLOWS
STOKES DRAG
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:11336/146237
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Preferential Concentration of Free-Falling Heavy Particles in TurbulenceFalkinhoff, F.Obligado, M.Bourgoin, M.Mininni, Pablo DanielMULTIPHASE FLOWSTURBULENCEPARTICLE LADEN FLOWSSTOKES DRAGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a sweep-stick mechanism for heavy particles transported by a turbulent flow under the action of gravity. Direct numerical simulations show that these particles preferentially explore regions of the flow with close to zero Lagrangian acceleration. However, the actual Lagrangian acceleration of the fluid elements where particles accumulate is not zero, and has a dependence on the Stokes number, the gravity acceleration, and the settling velocity of the particles.Fil: Falkinhoff, F.. Universidad de Buenos Aires; Argentina. Universite Lyon 2; FranciaFil: Obligado, M.. Centre National de la Recherche Scientifique; FranciaFil: Bourgoin, M.. Universite Lyon 2; FranciaFil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaAmerican Physical Society2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146237Falkinhoff, F.; Obligado, M.; Bourgoin, M.; Mininni, Pablo Daniel; Preferential Concentration of Free-Falling Heavy Particles in Turbulence; American Physical Society; Physical Review Letters; 125; 6; 8-2020; 1-50031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevLett.125.064504info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.125.064504info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:33Zoai:ri.conicet.gov.ar:11336/146237instacron: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 09:48:33.784CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Preferential Concentration of Free-Falling Heavy Particles in Turbulence
title Preferential Concentration of Free-Falling Heavy Particles in Turbulence
spellingShingle Preferential Concentration of Free-Falling Heavy Particles in Turbulence
Falkinhoff, F.
MULTIPHASE FLOWS
TURBULENCE
PARTICLE LADEN FLOWS
STOKES DRAG
title_short Preferential Concentration of Free-Falling Heavy Particles in Turbulence
title_full Preferential Concentration of Free-Falling Heavy Particles in Turbulence
title_fullStr Preferential Concentration of Free-Falling Heavy Particles in Turbulence
title_full_unstemmed Preferential Concentration of Free-Falling Heavy Particles in Turbulence
title_sort Preferential Concentration of Free-Falling Heavy Particles in Turbulence
dc.creator.none.fl_str_mv Falkinhoff, F.
Obligado, M.
Bourgoin, M.
Mininni, Pablo Daniel
author Falkinhoff, F.
author_facet Falkinhoff, F.
Obligado, M.
Bourgoin, M.
Mininni, Pablo Daniel
author_role author
author2 Obligado, M.
Bourgoin, M.
Mininni, Pablo Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv MULTIPHASE FLOWS
TURBULENCE
PARTICLE LADEN FLOWS
STOKES DRAG
topic MULTIPHASE FLOWS
TURBULENCE
PARTICLE LADEN FLOWS
STOKES DRAG
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 present a sweep-stick mechanism for heavy particles transported by a turbulent flow under the action of gravity. Direct numerical simulations show that these particles preferentially explore regions of the flow with close to zero Lagrangian acceleration. However, the actual Lagrangian acceleration of the fluid elements where particles accumulate is not zero, and has a dependence on the Stokes number, the gravity acceleration, and the settling velocity of the particles.
Fil: Falkinhoff, F.. Universidad de Buenos Aires; Argentina. Universite Lyon 2; Francia
Fil: Obligado, M.. Centre National de la Recherche Scientifique; Francia
Fil: Bourgoin, M.. Universite Lyon 2; Francia
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description We present a sweep-stick mechanism for heavy particles transported by a turbulent flow under the action of gravity. Direct numerical simulations show that these particles preferentially explore regions of the flow with close to zero Lagrangian acceleration. However, the actual Lagrangian acceleration of the fluid elements where particles accumulate is not zero, and has a dependence on the Stokes number, the gravity acceleration, and the settling velocity of the particles.
publishDate 2020
dc.date.none.fl_str_mv 2020-08
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/11336/146237
Falkinhoff, F.; Obligado, M.; Bourgoin, M.; Mininni, Pablo Daniel; Preferential Concentration of Free-Falling Heavy Particles in Turbulence; American Physical Society; Physical Review Letters; 125; 6; 8-2020; 1-5
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/146237
identifier_str_mv Falkinhoff, F.; Obligado, M.; Bourgoin, M.; Mininni, Pablo Daniel; Preferential Concentration of Free-Falling Heavy Particles in Turbulence; American Physical Society; Physical Review Letters; 125; 6; 8-2020; 1-5
0031-9007
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://link.aps.org/doi/10.1103/PhysRevLett.125.064504
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.125.064504
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
_version_ 1842268929919025152
score 13.13397

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