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

dc.creatorIrastorza, Ramiro
dc.creatorCarlevaro, Manuel
dc.creatorPugnaloni, Luis
dc.date.accessioned2018-05-02T21:23:10Z
dc.date.available2018-05-02T21:23:10Z
dc.date.issued2013
dc.description.abstractWe 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.es_ES
dc.description.affiliationFil: Irastorza, Ramiro. UNLP. Instituto de Física de Líquidos y Sistemas Biológicos. CONICET; Argentinaes_ES
dc.description.affiliationFil: Carlevaro, Manuel. UTN (Universidad Tecnológica Nacional). Facultad Regional Buenos Aires. UDB Física. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_ES
dc.description.affiliationFil: Pugnaloni, Luis. UTN (Universidad Tecnológica Nacional). Departamento de Ingeniería Mecánica. GMG; Argentinaes_ES
dc.description.peerreviewedPeer Reviewedes_ES
dc.formatapplication/pdf
dc.identifier.doi10.1088/1742-5468/2013/12/P12012
dc.identifier.urihttp://hdl.handle.net/20.500.12272/2798
dc.language.isoenges_ES
dc.publisherJournal of Statistical Mechanics: Theory and Experimentes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.useAtribución (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.).es_ES
dc.subjectEdwards ensemblees_ES
dc.subjectRealistic simulations
dc.subjectTapped
dc.subjectNarrow
dc.subjectTwo dimensional
dc.subjectGranular columns
dc.titleExact predictions from Edwards ensemble vs realistic simulations of tapped narrow two dimensional granular columnses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.type.snrddocunento de conferenciaes_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES

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