Flow rate of polygonal grains through a bottleneck Interplay between shape and size

Autores
Goldberg, Ezequiel; Carlevaro, Manuel; Pugnaloni, Luis
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report two-dimensional simulations of circular and polygonal grains passing through an aperture at the bottom of a silo. The mass flow rate for regular polygons is lower than for disks\red{,} as observed by other authors. We show that both the exit velocity of the grains and the packing fraction are lower for polygons, which leads to the reduced flow rate. We point out the importance of the criteria used to define when two objects of different shape are considered to be of the same size. Depending on this criteria, the mass flow rate may vary significantly for some polygons. Moreover, the particle flow rate is non-trivially related to a combination of mass flow rate, particle shape and particle size. For some polygons, the particle flow rate may be lower or higher than that of the corresponding disks depending on the size comparison criteria.
Fil: Goldberg, Ezequiel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física; Argentina
Fil: Carlevaro, Manuel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pugnaloni, Luis. UTN (Universidad Tecnológica Nacional). Departamento de Ingeniería Mecánica. GMG; Argentina
Peer Reviewed
Materia
Granular flow; Non-circular particles
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2795
Acceder
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spelling Flow rate of polygonal grains through a bottleneck Interplay between shape and sizeGoldberg, EzequielCarlevaro, ManuelPugnaloni, LuisGranular flow; Non-circular particlesWe report two-dimensional simulations of circular and polygonal grains passing through an aperture at the bottom of a silo. The mass flow rate for regular polygons is lower than for disks\red{,} as observed by other authors. We show that both the exit velocity of the grains and the packing fraction are lower for polygons, which leads to the reduced flow rate. We point out the importance of the criteria used to define when two objects of different shape are considered to be of the same size. Depending on this criteria, the mass flow rate may vary significantly for some polygons. Moreover, the particle flow rate is non-trivially related to a combination of mass flow rate, particle shape and particle size. For some polygons, the particle flow rate may be lower or higher than that of the corresponding disks depending on the size comparison criteria.Fil: Goldberg, Ezequiel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física; ArgentinaFil: Carlevaro, Manuel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pugnaloni, Luis. UTN (Universidad Tecnológica Nacional). Departamento de Ingeniería Mecánica. GMG; ArgentinaPeer ReviewedPapers in Physics2018-05-02T21:04:15Z2018-05-02T21:04:15Z2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/279510.4279/PIP.070016enghttp://www.papersinphysics.org/index.php/papersinphysics/article/view/259info:eu-repo/semantics/openAccessAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-10-23T11:18:42Zoai:ria.utn.edu.ar:20.500.12272/2795instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-10-23 11:18:42.283Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Flow rate of polygonal grains through a bottleneck Interplay between shape and size
title Flow rate of polygonal grains through a bottleneck Interplay between shape and size
spellingShingle Flow rate of polygonal grains through a bottleneck Interplay between shape and size
Goldberg, Ezequiel
Granular flow; Non-circular particles
title_short Flow rate of polygonal grains through a bottleneck Interplay between shape and size
title_full Flow rate of polygonal grains through a bottleneck Interplay between shape and size
title_fullStr Flow rate of polygonal grains through a bottleneck Interplay between shape and size
title_full_unstemmed Flow rate of polygonal grains through a bottleneck Interplay between shape and size
title_sort Flow rate of polygonal grains through a bottleneck Interplay between shape and size
dc.creator.none.fl_str_mv Goldberg, Ezequiel
Carlevaro, Manuel
Pugnaloni, Luis
author Goldberg, Ezequiel
author_facet Goldberg, Ezequiel
Carlevaro, Manuel
Pugnaloni, Luis
author_role author
author2 Carlevaro, Manuel
Pugnaloni, Luis
author2_role author
author
dc.subject.none.fl_str_mv Granular flow; Non-circular particles
topic Granular flow; Non-circular particles
dc.description.none.fl_txt_mv We report two-dimensional simulations of circular and polygonal grains passing through an aperture at the bottom of a silo. The mass flow rate for regular polygons is lower than for disks\red{,} as observed by other authors. We show that both the exit velocity of the grains and the packing fraction are lower for polygons, which leads to the reduced flow rate. We point out the importance of the criteria used to define when two objects of different shape are considered to be of the same size. Depending on this criteria, the mass flow rate may vary significantly for some polygons. Moreover, the particle flow rate is non-trivially related to a combination of mass flow rate, particle shape and particle size. For some polygons, the particle flow rate may be lower or higher than that of the corresponding disks depending on the size comparison criteria.
Fil: Goldberg, Ezequiel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física; Argentina
Fil: Carlevaro, Manuel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pugnaloni, Luis. UTN (Universidad Tecnológica Nacional). Departamento de Ingeniería Mecánica. GMG; Argentina
Peer Reviewed
description We report two-dimensional simulations of circular and polygonal grains passing through an aperture at the bottom of a silo. The mass flow rate for regular polygons is lower than for disks\red{,} as observed by other authors. We show that both the exit velocity of the grains and the packing fraction are lower for polygons, which leads to the reduced flow rate. We point out the importance of the criteria used to define when two objects of different shape are considered to be of the same size. Depending on this criteria, the mass flow rate may vary significantly for some polygons. Moreover, the particle flow rate is non-trivially related to a combination of mass flow rate, particle shape and particle size. For some polygons, the particle flow rate may be lower or higher than that of the corresponding disks depending on the size comparison criteria.
publishDate 2015
dc.date.none.fl_str_mv 2015
2018-05-02T21:04:15Z
2018-05-02T21:04:15Z
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/20.500.12272/2795
10.4279/PIP.070016
url http://hdl.handle.net/20.500.12272/2795
identifier_str_mv 10.4279/PIP.070016
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://www.papersinphysics.org/index.php/papersinphysics/article/view/259
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Papers in Physics
publisher.none.fl_str_mv Papers in Physics
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 12.471625

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