Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number

Autores
Boschan, Alejandro; Ocampo, B. L.; Annichini, M.; Gauthier, G.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A study on the spatial organization and velocity fluctuations of non-Brownian spherical particles settling at low Reynolds number in a vertical Hele-Shaw cell is reported. The particle volume fraction ranged from 0.005 to 0.05, while the distance between cell plates ranged from 5 to 15 times the particle radius. Particle tracking revealed that particles were not uniformly distributed in space but assembled in transient settling clusters. The population distribution of these clusters followed an exponential law. The measured velocity fluctuations are in agreement with that predicted theoretically for spherical clusters, from the balance between the apparent weight and the drag force. This result suggests that particle clustering, more than a spatial distribution of particles derived from random and independent events, is at the origin of the velocity fluctuations.
Fil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ocampo, B. L.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Annichini, M.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Gauthier, G.. Université Paris Sud; Francia
Materia
suspensions
sedimentation
fluctuations
clusters
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:11336/46374
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds numberBoschan, AlejandroOcampo, B. L.Annichini, M.Gauthier, G.suspensionssedimentationfluctuationsclustershttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2A study on the spatial organization and velocity fluctuations of non-Brownian spherical particles settling at low Reynolds number in a vertical Hele-Shaw cell is reported. The particle volume fraction ranged from 0.005 to 0.05, while the distance between cell plates ranged from 5 to 15 times the particle radius. Particle tracking revealed that particles were not uniformly distributed in space but assembled in transient settling clusters. The population distribution of these clusters followed an exponential law. The measured velocity fluctuations are in agreement with that predicted theoretically for spherical clusters, from the balance between the apparent weight and the drag force. This result suggests that particle clustering, more than a spatial distribution of particles derived from random and independent events, is at the origin of the velocity fluctuations.Fil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ocampo, B. L.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Annichini, M.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; ArgentinaFil: Gauthier, G.. Université Paris Sud; FranciaAmerican Institute of Physics2016-06info: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/11336/46374Boschan, Alejandro; Ocampo, B. L.; Annichini, M.; Gauthier, G.; Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number; American Institute of Physics; Physics of Fluids; 28; 6; 6-2016; 1-8; 0633011070-6631CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/full/10.1063/1.4948989info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4948989info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1604.08883info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:47:17Zoai:ri.conicet.gov.ar:11336/46374instacron: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:34982025-10-29 12:47:17.4CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
title Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
spellingShingle Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
Boschan, Alejandro
suspensions
sedimentation
fluctuations
clusters
title_short Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
title_full Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
title_fullStr Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
title_full_unstemmed Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
title_sort Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number
dc.creator.none.fl_str_mv Boschan, Alejandro
Ocampo, B. L.
Annichini, M.
Gauthier, G.
author Boschan, Alejandro
author_facet Boschan, Alejandro
Ocampo, B. L.
Annichini, M.
Gauthier, G.
author_role author
author2 Ocampo, B. L.
Annichini, M.
Gauthier, G.
author2_role author
author
author
dc.subject.none.fl_str_mv suspensions
sedimentation
fluctuations
clusters
topic suspensions
sedimentation
fluctuations
clusters
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A study on the spatial organization and velocity fluctuations of non-Brownian spherical particles settling at low Reynolds number in a vertical Hele-Shaw cell is reported. The particle volume fraction ranged from 0.005 to 0.05, while the distance between cell plates ranged from 5 to 15 times the particle radius. Particle tracking revealed that particles were not uniformly distributed in space but assembled in transient settling clusters. The population distribution of these clusters followed an exponential law. The measured velocity fluctuations are in agreement with that predicted theoretically for spherical clusters, from the balance between the apparent weight and the drag force. This result suggests that particle clustering, more than a spatial distribution of particles derived from random and independent events, is at the origin of the velocity fluctuations.
Fil: Boschan, Alejandro. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ocampo, B. L.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Annichini, M.. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
Fil: Gauthier, G.. Université Paris Sud; Francia
description A study on the spatial organization and velocity fluctuations of non-Brownian spherical particles settling at low Reynolds number in a vertical Hele-Shaw cell is reported. The particle volume fraction ranged from 0.005 to 0.05, while the distance between cell plates ranged from 5 to 15 times the particle radius. Particle tracking revealed that particles were not uniformly distributed in space but assembled in transient settling clusters. The population distribution of these clusters followed an exponential law. The measured velocity fluctuations are in agreement with that predicted theoretically for spherical clusters, from the balance between the apparent weight and the drag force. This result suggests that particle clustering, more than a spatial distribution of particles derived from random and independent events, is at the origin of the velocity fluctuations.
publishDate 2016
dc.date.none.fl_str_mv 2016-06
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/11336/46374
Boschan, Alejandro; Ocampo, B. L.; Annichini, M.; Gauthier, G.; Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number; American Institute of Physics; Physics of Fluids; 28; 6; 6-2016; 1-8; 063301
1070-6631
CONICET Digital
CONICET
url http://hdl.handle.net/11336/46374
identifier_str_mv Boschan, Alejandro; Ocampo, B. L.; Annichini, M.; Gauthier, G.; Velocity fluctuations and population distribution in clusters of settling particles at low Reynolds number; American Institute of Physics; Physics of Fluids; 28; 6; 6-2016; 1-8; 063301
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/url/https://aip.scitation.org/doi/full/10.1063/1.4948989
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4948989
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1604.08883
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
_version_ 1847427531439865856
score 13.10058

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