Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/18791
 Title: Randomly driven granular fluids: Large-scale structure Author: Van Noije, T. P. C.Ernst, M. H.Trizac, EmmanuelPagonabarraga Mora, Ignacio Keywords: Materials granularsEquacions diferencialsTermodinàmica del desequilibriGranular materialsDifferential equationsNonequilibrium thermodynamic Issue Date: 1999 Publisher: The American Physical Society Abstract: The nonequilibrium steady state of a granular fluid, driven by a random external force, is demonstrated to exhibit long-range correlations, which behave as $\ensuremath{\sim}1/r$ in three and $\ensuremath{\sim}\mathrm{ln}(L/r)$ in two dimensions. We calculate the corresponding structure factors over the whole range of wave numbers, and find good agreement with two-dimensional molecular dynamics simulations. It is also shown by means of a mode coupling calculation, how the mean field values for the steady-state temperature and collision frequency, as obtained from the Enskog-Boltzmann equation, are renormalized by long wavelength hydrodynamic fluctuations. Note: Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.59.4326 It is part of: Physical Review e, 1999, vol. 59, núm. 4, p. 4326-4341 Related resource: http://dx.doi.org/10.1103/PhysRevE.59.4326 URI: http://hdl.handle.net/2445/18791 ISSN: 1063-651X Appears in Collections: Articles publicats en revistes (Física de la Matèria Condensada)

Files in This Item:
File Description SizeFormat