{ "id": "cond-mat/0302170", "version": "v1", "published": "2003-02-10T17:04:45.000Z", "updated": "2003-02-10T17:04:45.000Z", "title": "Hydrodynamic Modes for Granular Gases", "authors": [ "James W. Dufty", "J. Javier Brey" ], "doi": "10.1103/PhysRevE.68.030302", "categories": [ "cond-mat.stat-mech" ], "abstract": "The eigenfunctions and eigenvalues of the linearized Boltzmann equation for inelastic hard spheres (d=3) or disks (d=2) corresponding to d+2 hydrodynamic modes, are calculated in the long wavelength limit for a granular gas. The transport coefficients are identified and found to agree with those from the Chapman-Enskog solution. The dominance of hydrodynamic modes at long times and long wavelengths is studied via an exactly solvable kinetic model. A collisional continuum is bounded away from the hydrodynamic spectrum, assuring a hydrodynamic description at long times. The bound is closely related to the power law decay of the velocity distribution in the reference homogeneous cooling state.", "revisions": [ { "version": "v1", "updated": "2003-02-10T17:04:45.000Z" } ], "analyses": { "keywords": [ "hydrodynamic modes", "granular gases", "long times", "long wavelength limit", "inelastic hard spheres" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }