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Spatial correlations in compressible granular flows

dc.contributor.authorVan Noije, T. P. C.
dc.contributor.authorErnst, M. H.
dc.contributor.authorBrito, Ricardo
dc.date.accessioned2023-06-20T18:45:02Z
dc.date.available2023-06-20T18:45:02Z
dc.date.issued1998-05
dc.description© 1998 The American Physical Society. The authors want to thank J. A. G. Orza for his help in performing the simulations. T.v.N. acknowledges support of the foundation ‘‘Fundamenteel Onderzoek der Materie (FOM),’’ which is financially supported by the Dutch National Science Foundation (NOW). R.B. acknowledges support from DGICYT (Spain) Grant No. PB94-0265.
dc.description.abstractThe clustering instability in freely evolving granular fluids manifests itself in the density-density correlation function and structure factor. These functions are calculated from fluctuating hydrodynamics. As time increases, the structure factor of density fluctuations develops a maximum, which shifts to smaller wave numbers (growing correlation length). Furthermore, the inclusion of longitudinal velocity fluctuations changes long-range correlations in the flow field qualitatively and extends the validity of the theory for spatial velocity correlations to higher inelasticities. The theoretical predictions agree well with two-dimensional molecular-dynamics simulations.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipFundamenteel Onderzoek der Materie (FOM)
dc.description.sponsorshipDutch National Science Foundation (NWO)
dc.description.sponsorshipDGICYT (España)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/21533
dc.identifier.doi10.1103/PhysRevE.57.R4891
dc.identifier.issn1063-651X
dc.identifier.officialurlhttp://pre.aps.org/pdf/PRE/v57/i5/pR4891_1
dc.identifier.relatedurlhttp://pre.aps.org
dc.identifier.relatedurlhttp://arxiv.org/pdf/cond-mat/9710102v1
dc.identifier.urihttps://hdl.handle.net/20.500.14352/58509
dc.issue.number5, Par
dc.journal.titlePhysical Review E
dc.language.isoeng
dc.page.finalR4894
dc.page.initialR4891
dc.relation.projectIDPB94-0265.
dc.rights.accessRightsopen access
dc.subject.cdu536
dc.subject.keywordGases
dc.subject.ucmTermodinámica
dc.subject.unesco2213 Termodinámica
dc.titleSpatial correlations in compressible granular flows
dc.typejournal article
dc.volume.number57
dcterms.references[1] H. M. Jaeger, S. R. Nagel, and R. P. Behringer, Rev. Mod. Phys. 68, 1259 (1996). [2] I. Goldhirsch and G. Zanetti, Phys. Rev. Lett. 70, 1619 (1993); I. Goldhirsch, M-L. Tan, and G. Zanetti, J. Sci. Comput. 8, 1 (1993). [3] S. McNamara, Phys. Fluids A 5, 3056 (1993); S. McNamara and W. R. Young, Phys. Rev. E 53, 5089 (1996). [4] P. Deltour and J.-L. Barrat, J. Phys. (France) I 7, 137 (1997). [5] S. E. Esipov and T. Pöschel, J. Stat. Phys. 86, 1385 (1997). [6] J. J. Brey, F. Moreno, and J. W. Dufty, Phys. Rev. E 54, 445 (1996); J. J. Brey, M. J. Ruiz-Montero, and D. Cubero, ibid. 54, 3664 (1996). [7] T. P. C. van Noije, M. H. Ernst, R. Brito, and J. A. G. Orza, Phys. Rev. Lett. 79, 411 (1997). [8] S. Chapman and T. G. Cowling, The Mathematical Theory of Non-uniform Gases (Cambridge University Press), Cambridge, England, (1970). [9] N. Sela and I. Goldhirsch, J. Fluid Mech. (to be published). [10] L. Landau and E. M. Lifshitz, Fluid Mechanics (Pergamon Press, New York, 1959), Chap. 17. [11] T. P. C. van Noije, M. H. Ernst, and R. Brito, Physica A 251, 266 (1998).
dspace.entity.typePublication

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