Artículo
Scaling and aging in the homogeneous cooling state of a granular fluid of hard particles
Autor/es | Brey Abalo, José Javier
Prados Montaño, Antonio García de Soria Lucena, María Isabel Maynar Blanco, Pablo |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2007 |
Fecha de depósito | 2021-02-01 |
Publicado en |
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Resumen | The presence of the aging phenomenon in the homogeneous cooling state (HCS) of a granular fluid composed of inelastic hard spheres or disks is investigated. As a consequence of the scaling property of the N-particle ... The presence of the aging phenomenon in the homogeneous cooling state (HCS) of a granular fluid composed of inelastic hard spheres or disks is investigated. As a consequence of the scaling property of the N-particle distribution function, it is obtained that the decay of the normalized two-time correlation functions slows down as the time elapsed since the beginning of the measurement increases. This result is confirmed by molecular dynamics simulations for the particular case of the total energy of the system. The agreement is also quantitative in the low density limit, for which an explicit analytical form of the time correlation function has been derived. Moreover, the reported results provide support for the existence of the HCS as a solution of the N-particle Liouville equation. |
Identificador del proyecto | BFM2005-01398 |
Cita | Brey Abalo, J.J., Prados Montaño, A., García de Soria Lucena, M.I. y Maynar Blanco, P. (2007). Scaling and aging in the homogeneous cooling state of a granular fluid of hard particles. Journal of Physics A: Mathematical and Theoretical, 40 (48), 14331-14342. |
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