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dc.contributor.author
Rodriguez, Diego Emilio
dc.contributor.author
Benito, Jesica Gisele
dc.contributor.author
Ippolito, Irene Paula
dc.contributor.author
Hulin, Jean - Pierre
dc.contributor.author
Vidales, Ana Maria
dc.contributor.author
Uñac, Rodolfo Omar
dc.date.available
2016-05-13T21:17:39Z
dc.date.issued
2015-01
dc.identifier.citation
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
dc.identifier.issn
0032-5910
dc.identifier.uri
http://hdl.handle.net/11336/5649
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Granular
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Mixing
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Segregation
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Layering
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Spatiotemporal
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Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Dynamical effects in the segregation of granular mixtures in quasi 2D piles
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-13T15:19:13Z
dc.journal.volume
269
dc.journal.pagination
101-109
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodriguez, Diego Emilio. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
dc.description.fil
Fil: Benito, Jesica Gisele. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.description.fil
Fil: Ippolito, Irene Paula. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Fisica. Grupo de Medios Porosos; Argentina
dc.description.fil
Fil: Hulin, Jean - Pierre. Universite Paris Sud; Francia
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Fil: Vidales, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.description.fil
Fil: Uñac, Rodolfo Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
dc.journal.title
Powder Technology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591014007839
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2014.09.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.powtec.2014.09.001
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