Density profiles of granular gases studied by molecular dynamics and Brownian bridges

F. Peñuñuri*, J. A. Montoya, O. Carvente

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Despite the inherent frictional forces and dissipative collisions, confined granular matter can be regarded as a system in a stationary state if we inject energy continuously. Under these conditions, both the density and the granular temperature are, in general, non-monotonic variables along the height of the container. In consequence, an analytical description of a granular system is hard to conceive. Here, by using molecular dynamics simulations, we measure the packing fraction profiles for a vertically vibrating three-dimensional granular system in several gaseous-like stationary states. We show that by using the Brownian bridge concept, the determined packing fraction profiles can be reproduced accurately and give a complete description of the distribution of the particles inside the simulation box.

Original languageEnglish
Pages (from-to)2103-2110
Number of pages8
JournalPhysica A: Statistical Mechanics and its Applications
Volume492
DOIs
StatePublished - 15 Feb 2018

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

  • Brownian-bridge
  • Granular matter
  • Packing fraction

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