Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns

Autores
Irastorza, Ramiro; Carlevaro, Manuel; Pugnaloni, Luis
Año de publicación
2013
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
We simulate, via a discrete element method, the tapping of a narrow column of disks under gravity. For frictionless disks, this system has a simple analytical expression for the density of states in the Edwards volume ensemble. We compare the predictions of the ensemble at constant compactivity against the results for the steady states obtained in the simulations. We show that the steady states cannot be properly described since the microstates sampled are not in correspondence with the predicted distributions, suggesting that the postulates of flat measure and ergodicity are, either or both, invalid for this simple realization of a static granular system. However, we show that certain qualitative features of the volume fluctuations which are difficult to predict from simple arguments are captured by the theory.
Fil: Irastorza, Ramiro. Universidad Nacional de La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. CONICET; Argentina.
Fil: Carlevaro, Manuel. Universidad Tecnológica Nacional. Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Pugnaloni, Luis. Universidad Tecnológica Nacional. Departamento de Ingeniería Mecánica. GMG; Argentina.
Peer Reviewed
Materia
Edwards ensemble
Realistic simulations
Tapped
Narrow
Two dimensional
Granular columns
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2018-05-02T21:23:10Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2798
Acceder
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network_name_str Repositorio Institucional Abierto (UTN)
spelling Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columnsIrastorza, RamiroCarlevaro, ManuelPugnaloni, LuisEdwards ensembleRealistic simulationsTappedNarrowTwo dimensionalGranular columnsWe simulate, via a discrete element method, the tapping of a narrow column of disks under gravity. For frictionless disks, this system has a simple analytical expression for the density of states in the Edwards volume ensemble. We compare the predictions of the ensemble at constant compactivity against the results for the steady states obtained in the simulations. We show that the steady states cannot be properly described since the microstates sampled are not in correspondence with the predicted distributions, suggesting that the postulates of flat measure and ergodicity are, either or both, invalid for this simple realization of a static granular system. However, we show that certain qualitative features of the volume fluctuations which are difficult to predict from simple arguments are captured by the theory.Fil: Irastorza, Ramiro. Universidad Nacional de La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. CONICET; Argentina.Fil: Carlevaro, Manuel. Universidad Tecnológica Nacional. Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Pugnaloni, Luis. Universidad Tecnológica Nacional. Departamento de Ingeniería Mecánica. GMG; Argentina.Peer ReviewedJournal of Statistical Mechanics: Theory and Experiment2018-05-02T21:23:10Z2018-05-02T21:23:10Z2013info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersiondocumento de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/279810.1088/1742-5468/2013/12/P12012enginfo:eu-repo/semantics/openAccess2018-05-02T21:23:10ZAtribución (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 Nacional2026-09-24T12:47:44Zoai:ria.utn.edu.ar:20.500.12272/2798instacron: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:a2026-09-24 12:47:45.689Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
title Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
spellingShingle Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
Irastorza, Ramiro
Edwards ensemble
Realistic simulations
Tapped
Narrow
Two dimensional
Granular columns
title_short Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
title_full Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
title_fullStr Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
title_full_unstemmed Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
title_sort Exact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columns
dc.creator.none.fl_str_mv Irastorza, Ramiro
Carlevaro, Manuel
Pugnaloni, Luis
author Irastorza, Ramiro
author_facet Irastorza, Ramiro
Carlevaro, Manuel
Pugnaloni, Luis
author_role author
author2 Carlevaro, Manuel
Pugnaloni, Luis
author2_role author
author
dc.subject.none.fl_str_mv Edwards ensemble
Realistic simulations
Tapped
Narrow
Two dimensional
Granular columns
topic Edwards ensemble
Realistic simulations
Tapped
Narrow
Two dimensional
Granular columns
dc.description.none.fl_txt_mv We simulate, via a discrete element method, the tapping of a narrow column of disks under gravity. For frictionless disks, this system has a simple analytical expression for the density of states in the Edwards volume ensemble. We compare the predictions of the ensemble at constant compactivity against the results for the steady states obtained in the simulations. We show that the steady states cannot be properly described since the microstates sampled are not in correspondence with the predicted distributions, suggesting that the postulates of flat measure and ergodicity are, either or both, invalid for this simple realization of a static granular system. However, we show that certain qualitative features of the volume fluctuations which are difficult to predict from simple arguments are captured by the theory.
Fil: Irastorza, Ramiro. Universidad Nacional de La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. CONICET; Argentina.
Fil: Carlevaro, Manuel. Universidad Tecnológica Nacional. Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Pugnaloni, Luis. Universidad Tecnológica Nacional. Departamento de Ingeniería Mecánica. GMG; Argentina.
Peer Reviewed
description We simulate, via a discrete element method, the tapping of a narrow column of disks under gravity. For frictionless disks, this system has a simple analytical expression for the density of states in the Edwards volume ensemble. We compare the predictions of the ensemble at constant compactivity against the results for the steady states obtained in the simulations. We show that the steady states cannot be properly described since the microstates sampled are not in correspondence with the predicted distributions, suggesting that the postulates of flat measure and ergodicity are, either or both, invalid for this simple realization of a static granular system. However, we show that certain qualitative features of the volume fluctuations which are difficult to predict from simple arguments are captured by the theory.
publishDate 2013
dc.date.none.fl_str_mv 2013
2018-05-02T21:23:10Z
2018-05-02T21:23:10Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
documento de conferencia
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/2798
10.1088/1742-5468/2013/12/P12012
url http://hdl.handle.net/20.500.12272/2798
identifier_str_mv 10.1088/1742-5468/2013/12/P12012
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2018-05-02T21:23:10Z
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 2018-05-02T21:23:10Z
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 Journal of Statistical Mechanics: Theory and Experiment
publisher.none.fl_str_mv Journal of Statistical Mechanics: Theory and Experiment
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 13.24418

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