Artículo
Origin of density clustering in a freely evolving granular gas
Autor/es | Brey Abalo, José Javier
Cubero Gómez, David Ruiz Montero, María José |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 1999 |
Fecha de depósito | 2015-06-09 |
Publicado en |
|
Resumen | The physical mechanisms leading to the development of density inhomogeneities in a freely evolving low density granular gas are investigated. By means of the direct simulation Monte Carlo method, numerical solutions of the ... The physical mechanisms leading to the development of density inhomogeneities in a freely evolving low density granular gas are investigated. By means of the direct simulation Monte Carlo method, numerical solutions of the inelastic Boltzmann equation are constructed for both a perturbed system and also for an initially homogeneous state. Analysis of the Fourier components of the fields indicates that the nonlinear coupling contributions of the transversal velocity play a crucial role in the initial setup of clustering. A simple hydrodynamic model is proposed to describe what is observed in the simulations. Finally, the nature of the inhomogeneous state is briefly discussed. |
Agencias financiadoras | Dirección General de Investigación Científica y Técnica (DGICYT). España |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
PRE_Cubero_1999_origin.pdf | 124.0Kb | [PDF] | Ver/ | |