Freely cooling granular gases with short-ranged attractive potentials
dc.contributor.author | Murphy, Eric | |
dc.contributor.author | Subramaniam, Shankar | |
dc.contributor.author | Subramaniam, Shankar | |
dc.contributor.department | Mechanical Engineering | |
dc.date | 2020-02-06T17:03:21.000 | |
dc.date.accessioned | 2020-06-30T06:05:31Z | |
dc.date.available | 2020-06-30T06:05:31Z | |
dc.date.copyright | Thu Jan 01 00:00:00 UTC 2015 | |
dc.date.issued | 2015-01-01 | |
dc.description.abstract | <p>We treat the case of an undriven gas of inelastic hard-spheres with short-ranged attractive potentials via an extension of the pseudo-Liouville operator formalism. New evolution equations for the granular temperature and coordination number are obtained. The granular temperature exhibits deviation from both Haff’s law and the case of long-ranged potentials. We verify this departure using soft-sphere discrete element method simulations. Excellent agreement is found for the duration of the simulation even beyond where exclusively binary collisions are expected. Simulations show the emergence of strong spatial-velocity correlations on the length scale of the last peak in the pair-correlation function but do not show strong correlations beyond this length scale. We argue that molecular chaos may remain an adequate approximation if the system is modelled as a Smoluchowski type equation with aggregation and break-up processes.</p> | |
dc.description.comments | <p>This article is published as Murphy, Eric, and Shankar Subramaniam. "Freely cooling granular gases with short-ranged attractive potentials." <em>Physics of Fluids</em> 27, no. 4 (2015): 043301. DOI: <a href="http://dx.doi.org/10.1063/1.4916674" target="_blank">10.1063/1.4916674</a>. Posted with permission.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/me_pubs/407/ | |
dc.identifier.articleid | 1408 | |
dc.identifier.contextkey | 16470753 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | me_pubs/407 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/55281 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/me_pubs/407/2015_SubramaniamShankar_FreelyCooling.pdf|||Sat Jan 15 00:08:43 UTC 2022 | |
dc.source.uri | 10.1063/1.4916674 | |
dc.subject.disciplines | Fluid Dynamics | |
dc.subject.disciplines | Mechanical Engineering | |
dc.title | Freely cooling granular gases with short-ranged attractive potentials | |
dc.type | article | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | 89c45c1c-2aba-4f7f-9477-32e0101605dc | |
relation.isOrgUnitOfPublication | 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59 |
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