Free-volume kinetic models of granular matter
Fecha
2000Materia
Abstract
We show that the main dynamical features of granular media can be understood by means of simple models of fragile-glass-forming liquid [Kob and Andersen, Phys. Rev. E 48, 4364 (1993)] provided that gravity alone is taken into account. In such lattice-gas models of cohesionless and frictionless particles, the compaction and segregation phenomena appear as purely nonequilibrium effects unrelated to the Boltzmann-Gibbs measure, which in this case is trivial. They provide a natural framework in whi ...
We show that the main dynamical features of granular media can be understood by means of simple models of fragile-glass-forming liquid [Kob and Andersen, Phys. Rev. E 48, 4364 (1993)] provided that gravity alone is taken into account. In such lattice-gas models of cohesionless and frictionless particles, the compaction and segregation phenomena appear as purely nonequilibrium effects unrelated to the Boltzmann-Gibbs measure, which in this case is trivial. They provide a natural framework in which slow relaxation phenomena in granular and glassy systems can be explained in terms of a common microscopic mechanism given by a free-volume kinetic constraint. ...
En
Physical review. E. Statistical physics, plasmas, fluids, and related interdisciplinary topics. Melville. Vol. 62, no. 6 (Dec. 2000), p. 7793-7796
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Artículos de Periódicos (39552)Ciencias Exactas y Naturales (6036)
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