Dynamical effects in the segregation of granular mixtures in quasi 2D piles

Autores
Rodriguez, Diego Emilio; Benito, Jesica Gisele; Ippolito, Irene Paula; Hulin, Jean - Pierre; Vidales, Ana Maria; Uñac, Rodolfo Omar
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The dynamics of segregation, mixing and layering is studied during the build-up of quasi-2D piles of two different species of grains of different diameters (i.e. 1 mm glass beads and either 3 mm glass beads or 3.1 mm coriander seeds). The ranges of existence of the different flow regimes are studied as a function of the relative volume flow rates of the two species and of the drop height; the variation of the mean slope of the pile with time is shown to depend on the flow regime. Complete segregation occurs when the larger grains are coriander seeds while there is always some mixing for glass beads, although the ratio between the sizes of the particles is the same in both cases. A layered regime is observed for glass beads of same geometry (i.e. spheres) and density but of two different diameters: it is accompanied by variations of large amplitude of the slope of the pile. No layering occurs when the large particles are coriander seeds instead of glass beads. The local processes underlying these regimes are analyzed quantitatively from spatiotemporal diagrams of the profile of the free surface and the characteristic velocities of the different types of displacements of the grains are determined. Avalanches are only observed for glass beads and in the layered regime and play an important part in the development of the layers.
Fil: Rodriguez, Diego Emilio. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
Fil: Benito, Jesica Gisele. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
Fil: Hulin, Jean - Pierre. Universite Paris Sud; Francia
Fil: Vidales, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Uñac, Rodolfo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Materia
Granular
Mixing
Segregation
Layering
Spatiotemporal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5649
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5649
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dynamical effects in the segregation of granular mixtures in quasi 2D pilesRodriguez, Diego EmilioBenito, Jesica GiseleIppolito, Irene PaulaHulin, Jean - PierreVidales, Ana MariaUñac, Rodolfo OmarGranularMixingSegregationLayeringSpatiotemporalhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The dynamics of segregation, mixing and layering is studied during the build-up of quasi-2D piles of two different species of grains of different diameters (i.e. 1 mm glass beads and either 3 mm glass beads or 3.1 mm coriander seeds). The ranges of existence of the different flow regimes are studied as a function of the relative volume flow rates of the two species and of the drop height; the variation of the mean slope of the pile with time is shown to depend on the flow regime. Complete segregation occurs when the larger grains are coriander seeds while there is always some mixing for glass beads, although the ratio between the sizes of the particles is the same in both cases. A layered regime is observed for glass beads of same geometry (i.e. spheres) and density but of two different diameters: it is accompanied by variations of large amplitude of the slope of the pile. No layering occurs when the large particles are coriander seeds instead of glass beads. The local processes underlying these regimes are analyzed quantitatively from spatiotemporal diagrams of the profile of the free surface and the characteristic velocities of the different types of displacements of the grains are determined. Avalanches are only observed for glass beads and in the layered regime and play an important part in the development of the layers.Fil: Rodriguez, Diego Emilio. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; ArgentinaFil: Benito, Jesica Gisele. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; ArgentinaFil: Hulin, Jean - Pierre. Universite Paris Sud; FranciaFil: Vidales, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Uñac, Rodolfo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaElsevier2015-01info: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/11336/5649Rodriguez, Diego Emilio; Benito, Jesica Gisele; Ippolito, Irene Paula; Hulin, Jean - Pierre; Vidales, Ana Maria; et al.; Dynamical effects in the segregation of granular mixtures in quasi 2D piles; Elsevier; Powder Technology; 269; 1-2015; 101-1090032-5910enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591014007839info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2014.09.001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:38Zoai:ri.conicet.gov.ar:11336/5649instacron: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 09:52:39.131CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamical effects in the segregation of granular mixtures in quasi 2D piles
title Dynamical effects in the segregation of granular mixtures in quasi 2D piles
spellingShingle Dynamical effects in the segregation of granular mixtures in quasi 2D piles
Rodriguez, Diego Emilio
Granular
Mixing
Segregation
Layering
Spatiotemporal
title_short Dynamical effects in the segregation of granular mixtures in quasi 2D piles
title_full Dynamical effects in the segregation of granular mixtures in quasi 2D piles
title_fullStr Dynamical effects in the segregation of granular mixtures in quasi 2D piles
title_full_unstemmed Dynamical effects in the segregation of granular mixtures in quasi 2D piles
title_sort Dynamical effects in the segregation of granular mixtures in quasi 2D piles
dc.creator.none.fl_str_mv Rodriguez, Diego Emilio
Benito, Jesica Gisele
Ippolito, Irene Paula
Hulin, Jean - Pierre
Vidales, Ana Maria
Uñac, Rodolfo Omar
author Rodriguez, Diego Emilio
author_facet Rodriguez, Diego Emilio
Benito, Jesica Gisele
Ippolito, Irene Paula
Hulin, Jean - Pierre
Vidales, Ana Maria
Uñac, Rodolfo Omar
author_role author
author2 Benito, Jesica Gisele
Ippolito, Irene Paula
Hulin, Jean - Pierre
Vidales, Ana Maria
Uñac, Rodolfo Omar
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Granular
Mixing
Segregation
Layering
Spatiotemporal
topic Granular
Mixing
Segregation
Layering
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 dynamics of segregation, mixing and layering is studied during the build-up of quasi-2D piles of two different species of grains of different diameters (i.e. 1 mm glass beads and either 3 mm glass beads or 3.1 mm coriander seeds). The ranges of existence of the different flow regimes are studied as a function of the relative volume flow rates of the two species and of the drop height; the variation of the mean slope of the pile with time is shown to depend on the flow regime. Complete segregation occurs when the larger grains are coriander seeds while there is always some mixing for glass beads, although the ratio between the sizes of the particles is the same in both cases. A layered regime is observed for glass beads of same geometry (i.e. spheres) and density but of two different diameters: it is accompanied by variations of large amplitude of the slope of the pile. No layering occurs when the large particles are coriander seeds instead of glass beads. The local processes underlying these regimes are analyzed quantitatively from spatiotemporal diagrams of the profile of the free surface and the characteristic velocities of the different types of displacements of the grains are determined. Avalanches are only observed for glass beads and in the layered regime and play an important part in the development of the layers.
Fil: Rodriguez, Diego Emilio. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
Fil: Benito, Jesica Gisele. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
Fil: Hulin, Jean - Pierre. Universite Paris Sud; Francia
Fil: Vidales, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Uñac, Rodolfo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
description The dynamics of segregation, mixing and layering is studied during the build-up of quasi-2D piles of two different species of grains of different diameters (i.e. 1 mm glass beads and either 3 mm glass beads or 3.1 mm coriander seeds). The ranges of existence of the different flow regimes are studied as a function of the relative volume flow rates of the two species and of the drop height; the variation of the mean slope of the pile with time is shown to depend on the flow regime. Complete segregation occurs when the larger grains are coriander seeds while there is always some mixing for glass beads, although the ratio between the sizes of the particles is the same in both cases. A layered regime is observed for glass beads of same geometry (i.e. spheres) and density but of two different diameters: it is accompanied by variations of large amplitude of the slope of the pile. No layering occurs when the large particles are coriander seeds instead of glass beads. The local processes underlying these regimes are analyzed quantitatively from spatiotemporal diagrams of the profile of the free surface and the characteristic velocities of the different types of displacements of the grains are determined. Avalanches are only observed for glass beads and in the layered regime and play an important part in the development of the layers.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/5649
Rodriguez, Diego Emilio; Benito, Jesica Gisele; Ippolito, Irene Paula; Hulin, Jean - Pierre; Vidales, Ana Maria; et al.; Dynamical effects in the segregation of granular mixtures in quasi 2D piles; Elsevier; Powder Technology; 269; 1-2015; 101-109
0032-5910
url http://hdl.handle.net/11336/5649
identifier_str_mv Rodriguez, Diego Emilio; Benito, Jesica Gisele; Ippolito, Irene Paula; Hulin, Jean - Pierre; Vidales, Ana Maria; et al.; Dynamical effects in the segregation of granular mixtures in quasi 2D piles; Elsevier; Powder Technology; 269; 1-2015; 101-109
0032-5910
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591014007839
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2014.09.001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1842269173106868224
score 13.13397

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