Phys. Rev. Lett. 79, 411 - 414 (1997)Mesoscopic Theory of Granular Fluids |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
T. P. C. van Noije and M. H. Ernst
Instituut voor Theoretische Fysica, Universiteit Utrecht, Postbus 80006, 3508 TA Utrecht, The Netherlands
R. Brito and J. A. G. Orza
Facultad de Ciencias Físicas, Universidad Complutense, 28040 Madrid, Spain
Received 18 February 1997
Using fluctuating hydrodynamics we describe the slow buildup of long range spatial correlations in a freely evolving fluid of inelastic hard spheres. In the incompressible limit, the behavior of spatial velocity correlations (including r-d behavior) is governed by vorticity fluctuations only and agrees well with two-dimensional simulations up to 50 to 100 collisions per particle. The incompressibility assumption breaks down beyond a distance that diverges in the elastic limit.
©1997 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v79/p411
DOI: 10.1103/PhysRevLett.79.411
PACS: 46.10.+z, 05.20.Dd, 05.40.+j, 81.05.Rm
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