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dc.creatorLiu, R
dc.creatorYang, M
dc.creatorChen, K
dc.creatorHou, M
dc.creatorTo, K
dc.date.accessioned2021-02-03T16:08:21Z
dc.date.available2021-02-03T16:08:21Z
dc.date.issued2016-08-23
dc.identifier.issn2470-0045
dc.identifier.issn2470-0053
dc.identifier.doihttp://dx.doi.org/10.34944/dspace/5682
dc.identifier.other27627232 (pubmed)
dc.identifier.urihttp://hdl.handle.net/20.500.12613/5700
dc.description.abstract© 2016 American Physical Society. Using an event-driven molecular dynamics simulation, we show that simple monodisperse granular beads confined in coupled columns may oscillate as a different type of granular clock. To trigger this oscillation, the system needs to be driven against gravity into a density-inverted state, with a high-density clustering phase supported from below by a gaslike low-density phase (Leidenfrost effect) in each column. Our analysis reveals that the density-inverted structure and the relaxation dynamics between the phases can amplify any small asymmetry between the columns, and lead to a giant oscillation. The oscillation occurs only for an intermediate range of the coupling strength, and the corresponding phase diagram can be universally described with a characteristic height of the density-inverted structure. A minimal two-phase model is proposed and a linear stability analysis shows that the triggering mechanism of the oscillation can be explained as a switchable two-parameter Andronov-Hopf bifurcation. Numerical solutions of the model also reproduce similar oscillatory dynamics to the simulation results.
dc.format.extent020901-
dc.language.isoen
dc.relation.haspartPhysical Review E
dc.relation.isreferencedbyAmerican Physical Society (APS)
dc.subjectcond-mat.soft
dc.subjectcond-mat.soft
dc.titleCoupled Leidenfrost states as a monodisperse granular clock
dc.typeArticle
dc.type.genreJournal Article
dc.relation.doi10.1103/PhysRevE.94.020901
dc.ada.noteFor Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
dc.date.updated2021-02-03T16:08:17Z
refterms.dateFOA2021-02-03T16:08:22Z


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