Asymmetric and long range interactions in shaken granular media

We use a computational model to investigate the emergence of interaction forces between pairs of intruders in a horizontally vibrated granular fluid. The time evolution of a pair of particles shows a maximum of the likelihood to find the pair at contact in the direction of shaking. This relative int...

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Detalles Bibliográficos
Autores: Codina Sala, Joan, Pagonabarraga Mora, Ignacio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/149233
Acceso en línea:https://hdl.handle.net/2445/149233
Access Level:acceso abierto
Palabra clave:Processos estocàstics
Mecànica estadística del no equilibri
Materials granulars
Stochastic processes
Nonequilibrium statistical mechanics
Granular materials
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spelling Asymmetric and long range interactions in shaken granular mediaCodina Sala, JoanPagonabarraga Mora, IgnacioProcessos estocàsticsMecànica estadística del no equilibriMaterials granularsStochastic processesNonequilibrium statistical mechanicsGranular materialsWe use a computational model to investigate the emergence of interaction forces between pairs of intruders in a horizontally vibrated granular fluid. The time evolution of a pair of particles shows a maximum of the likelihood to find the pair at contact in the direction of shaking. This relative interaction is further studied by fixing the intruders in the simulation box where we identify effective mechanical forces and torques between particles and quantify an emergent long range attractive force as a function of the shaking relative angle, the amplitude, and the packing density of grains. We determine the local density and kinetic energy profiles of granular particles along the axis of the dimer to find no gradients in the density fields and additive gradients in the kinetic energies.American Institute of Physics2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/149233Articles publicats en revistes (Física de la Matèria Condensada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1063/1.5123304Journal of Chemical Physics, 2019, vol. 151, num. 16, p. 164903https://doi.org/10.1063/1.5123304(c) American Institute of Physics , 2019info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1492332026-05-27T06:46:51Z
dc.title.none.fl_str_mv Asymmetric and long range interactions in shaken granular media
title Asymmetric and long range interactions in shaken granular media
spellingShingle Asymmetric and long range interactions in shaken granular media
Codina Sala, Joan
Processos estocàstics
Mecànica estadística del no equilibri
Materials granulars
Stochastic processes
Nonequilibrium statistical mechanics
Granular materials
title_short Asymmetric and long range interactions in shaken granular media
title_full Asymmetric and long range interactions in shaken granular media
title_fullStr Asymmetric and long range interactions in shaken granular media
title_full_unstemmed Asymmetric and long range interactions in shaken granular media
title_sort Asymmetric and long range interactions in shaken granular media
dc.creator.none.fl_str_mv Codina Sala, Joan
Pagonabarraga Mora, Ignacio
author Codina Sala, Joan
author_facet Codina Sala, Joan
Pagonabarraga Mora, Ignacio
author_role author
author2 Pagonabarraga Mora, Ignacio
author2_role author
dc.subject.none.fl_str_mv Processos estocàstics
Mecànica estadística del no equilibri
Materials granulars
Stochastic processes
Nonequilibrium statistical mechanics
Granular materials
topic Processos estocàstics
Mecànica estadística del no equilibri
Materials granulars
Stochastic processes
Nonequilibrium statistical mechanics
Granular materials
description We use a computational model to investigate the emergence of interaction forces between pairs of intruders in a horizontally vibrated granular fluid. The time evolution of a pair of particles shows a maximum of the likelihood to find the pair at contact in the direction of shaking. This relative interaction is further studied by fixing the intruders in the simulation box where we identify effective mechanical forces and torques between particles and quantify an emergent long range attractive force as a function of the shaking relative angle, the amplitude, and the packing density of grains. We determine the local density and kinetic energy profiles of granular particles along the axis of the dimer to find no gradients in the density fields and additive gradients in the kinetic energies.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/149233
url https://hdl.handle.net/2445/149233
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1063/1.5123304
Journal of Chemical Physics, 2019, vol. 151, num. 16, p. 164903
https://doi.org/10.1063/1.5123304
dc.rights.none.fl_str_mv (c) American Institute of Physics , 2019
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Institute of Physics , 2019
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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