Coupled Leidenfrost states as a monodisperse granular clock
dc.creator | Liu, R | |
dc.creator | Yang, M | |
dc.creator | Chen, K | |
dc.creator | Hou, M | |
dc.creator | To, K | |
dc.date.accessioned | 2021-02-03T16:08:21Z | |
dc.date.available | 2021-02-03T16:08:21Z | |
dc.date.issued | 2016-08-23 | |
dc.identifier.issn | 2470-0045 | |
dc.identifier.issn | 2470-0053 | |
dc.identifier.doi | http://dx.doi.org/10.34944/dspace/5682 | |
dc.identifier.other | 27627232 (pubmed) | |
dc.identifier.uri | http://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.extent | 020901- | |
dc.language.iso | en | |
dc.relation.haspart | Physical Review E | |
dc.relation.isreferencedby | American Physical Society (APS) | |
dc.subject | cond-mat.soft | |
dc.subject | cond-mat.soft | |
dc.title | Coupled Leidenfrost states as a monodisperse granular clock | |
dc.type | Article | |
dc.type.genre | Journal Article | |
dc.relation.doi | 10.1103/PhysRevE.94.020901 | |
dc.ada.note | For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu | |
dc.date.updated | 2021-02-03T16:08:17Z | |
refterms.dateFOA | 2021-02-03T16:08:22Z |