Artículo
Universal reference state in a driven homogeneous granular gas
Autor/es | García de Soria Lucena, María Isabel
Maynar Blanco, Pablo |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2012 |
Fecha de depósito | 2020-05-20 |
Publicado en |
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Resumen | We study the dynamics of a homogeneous granular gas heated by a stochastic thermostat, in the low density
limit. It is found that, before reaching the stationary regime, the system quickly “forgets” the initial condition ... We study the dynamics of a homogeneous granular gas heated by a stochastic thermostat, in the low density limit. It is found that, before reaching the stationary regime, the system quickly “forgets” the initial condition and then evolves through a universal state that does not only depend on the dimensionless velocity, but also on the instantaneous temperature, suitably renormalized by its steady state value. We find excellent agreement between the theoretical predictions at the Boltzmann equation level for the one-particle distribution function and the direct Monte Carlo simulations. We conclude that at variance with the homogeneous cooling phenomenology, the velocity statistics should not be envisioned as a single-parameter, but as a two-parameter scaling form, keeping track of the distance to stationarity. |
Agencias financiadoras | Ministerio de Educación y Ciencia (MEC). España |
Identificador del proyecto | Grant No. FIS2008-01339 |
Cita | García de Soria Lucena, M.I. y Maynar Blanco, P. (2012). Universal reference state in a driven homogeneous granular gas. Physical Review E, 85 (5), 051301-1-051301-6. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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pubPhysRevE.85.051301.pdf | 608.2Kb | [PDF] | Ver/ | |