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dc.contributor.author
Guerrero Borges, Veronica
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dc.contributor.author
Pugnaloni, Luis Ariel
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dc.contributor.author
Lozano, C.
dc.contributor.author
Zuriguel, I.
dc.contributor.author
Garcimartín, A.
dc.date.available
2020-03-27T16:12:30Z
dc.date.issued
2018-04
dc.identifier.citation
Guerrero Borges, Veronica; Pugnaloni, Luis Ariel; Lozano, C.; Zuriguel, I.; Garcimartín, A.; Slow relaxation dynamics of clogs in a vibrated granular silo; American Physical Society; Physical Review E; 97; 4; 4-2018; 1-8
dc.identifier.issn
2470-0045
dc.identifier.uri
http://hdl.handle.net/11336/101061
dc.description.abstract
We experimentally explore the vibration-induced unclogging of arches halting the flow in a two-dimensional silo. The endurance of arches is determined by carrying out a survival analysis of their breaking times. By analyzing the dynamics of two morphological variables, we demonstrate that arches evolve toward less regular structures and it seems that there may exist a certain degree of irregularity that the arch reaches before collapsing. Moreover, we put forward that σ (the standard deviation of all angles between consecutive beads) describes faithfully the morphological evolution of the arch. Focusing on long-lasting arches, we study σ calculating its two-time autocorrelation function and its mean-squared displacement. In particular, the apparent logarithmic increase of the correlation and the decrease of the mean-squared displacement of σ when the waiting time is increased reveal a slowing down of the dynamics. This behavior is a clear hallmark of aging phenomena and confirms the lack of ergodicity in the unclogging dynamics. Our findings provide new insights on how an arch tends to destabilize and how the probability that it breaks with a long sustained vibration decreases with time.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Granular matter
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Slow relaxation dynamics of clogs in a vibrated granular silo
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-03-25T13:47:08Z
dc.journal.volume
97
dc.journal.number
4
dc.journal.pagination
1-8
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Guerrero Borges, Veronica. Universidad de Navarra; España
dc.description.fil
Fil: Pugnaloni, Luis Ariel. Universidad Tecnológica Nacional. Facultad Regional La Plata. Departamento de Ingeniería Mecánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Lozano, C.. Universitat Konstanz; Alemania
dc.description.fil
Fil: Zuriguel, I.. Universidad de Navarra; España
dc.description.fil
Fil: Garcimartín, A.. Universidad de Navarra; España
dc.journal.title
Physical Review E
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.97.042904
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pre/abstract/10.1103/PhysRevE.97.042904
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