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Structure of velocity distributions in shock waves in granular gases with extension to molecular gases

hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorVILQUIN, Alexandre
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorBOUDET, J. F.
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorKELLAY, H.
dc.date.created2015-06-05
dc.date.issued2016-08
dc.identifier.issn2470-0045
dc.description.abstractEnVelocity distributions in normal shock waves obtained in dilute granular flows are studied. These distributions cannot be described by a simple functional shape and are believed to be bimodal. Our results show that these distributions are not strictly bimodal but a trimodal distribution is shown to be sufficient. The usual Mott-Smith bimodal description of these distributions, developed for molecular gases, and based on the coexistence of two subpopulations (a supersonic and a subsonic population) in the shock front, can be modified by adding a third subpopulation. Our experiments show that this additional population results from collisions between the supersonic and subsonic subpopulations. We propose a simple approach incorporating the role of this third intermediate population to model the measured probability distributions and apply it to granular shocks as well as shocks in molecular gases.
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enStructure of velocity distributions in shock waves in granular gases with extension to molecular gases
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevE.94.022905
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
bordeaux.journalPhysical Review E
bordeaux.page022905 (1-14)
bordeaux.volume94
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-01392711
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01392711v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20E&rft.date=2016-08&rft.volume=94&rft.issue=2&rft.spage=022905%20(1-14)&rft.epage=022905%20(1-14)&rft.eissn=2470-0045&rft.issn=2470-0045&rft.au=VILQUIN,%20Alexandre&BOUDET,%20J.%20F.&KELLAY,%20H.&rft.genre=article


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