Chapter of Book
Hydrodynamic Transport Coefficients of Granular Gases
Author/s | Brey Abalo, José Javier
Cubero, David |
Department | Universidad de Sevilla. Departamento de Física Aplicada I |
Publication Date | 2001 |
Deposit Date | 2016-12-10 |
Published in |
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ISBN/ISSN | 3-540-41458-4 |
Abstract | Some transport properties of granular gases are investigated. Starting from a kinetic theory level of description, the hydrodynamic transport equations to Navier-Stokes order are presented. The equations are derived by ... Some transport properties of granular gases are investigated. Starting from a kinetic theory level of description, the hydrodynamic transport equations to Navier-Stokes order are presented. The equations are derived by means of the Chapman-Enskog procedure. To test the existence of a normal solution and the possibility of a hydrodynamic description, the theoretical predictions are compared with numerical simulations of the underlying kinetic equation for small deviations around the reference homogeneous state. An excellent agreement is found for all the range of dissipation in collisions considered. Similar analysis is presented for self-diffusion and Brownian motion. In the former case, also Molecular Dynamics results are shown to agree with the theoretical predictions. Quantitative and also qualitative differences with the elastic limit are discussed. |
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