Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture

It has been recently reported that a granular mixture in which grains differ in their restitution coefficients presents segregation: the more inelastic particles sink to the bottom. When other segregation mechanisms as buoyancy and the Brazil nut effect are present, the inelasticity induced segregat...

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Detalles Bibliográficos
Autores: Soto, R., Brito López, Ricardo
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/43806
Acceso en línea:https://hdl.handle.net/20.500.14352/43806
Access Level:acceso abierto
Palabra clave:536
Termodinámica
2213 Termodinámica
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spelling Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixtureSoto, R.Brito López, Ricardo536Termodinámica2213 TermodinámicaIt has been recently reported that a granular mixture in which grains differ in their restitution coefficients presents segregation: the more inelastic particles sink to the bottom. When other segregation mechanisms as buoyancy and the Brazil nut effect are present, the inelasticity induced segregation can compete with them. First, a detailed analysis, based on numerical simulations of two dimensional systems, of the competition between buoyancy and the inelasticity induced segregation is presented, finding that there is a transition line in the parameter space that determines which mechanism is dominant. In the case of neutrally buoyant particles having different sizes the inelasticity induced segregation can compete with the Brazil nut effect (BNE). Reverse Brazil nut effect (RBNE) could be obtained at large inelasticities of the intruder. At intermediate values, BNE and RBNE coexist and large inelastic particles are found both near the bottom and at the top of the system.Universidad Complutense de Madrid20092009-12-0120092009-12-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/43806reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/438062026-06-02T12:44:21Z
dc.title.none.fl_str_mv Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
title Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
spellingShingle Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
Soto, R.
536
Termodinámica
2213 Termodinámica
title_short Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
title_full Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
title_fullStr Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
title_full_unstemmed Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
title_sort Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
dc.creator.none.fl_str_mv Soto, R.
Brito López, Ricardo
author Soto, R.
author_facet Soto, R.
Brito López, Ricardo
author_role author
author2 Brito López, Ricardo
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 536
Termodinámica
2213 Termodinámica
topic 536
Termodinámica
2213 Termodinámica
description It has been recently reported that a granular mixture in which grains differ in their restitution coefficients presents segregation: the more inelastic particles sink to the bottom. When other segregation mechanisms as buoyancy and the Brazil nut effect are present, the inelasticity induced segregation can compete with them. First, a detailed analysis, based on numerical simulations of two dimensional systems, of the competition between buoyancy and the inelasticity induced segregation is presented, finding that there is a transition line in the parameter space that determines which mechanism is dominant. In the case of neutrally buoyant particles having different sizes the inelasticity induced segregation can compete with the Brazil nut effect (BNE). Reverse Brazil nut effect (RBNE) could be obtained at large inelasticities of the intruder. At intermediate values, BNE and RBNE coexist and large inelastic particles are found both near the bottom and at the top of the system.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-12-01
2009
2009-12-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/43806
url https://hdl.handle.net/20.500.14352/43806
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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