2010/06/01 by Jorge Adrián Perera-Burgos, J. A. Perera-Burgos, Gabriel Pérez-Ángel +2 · 9 citations
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Cluster analysis #Diffusion #Dissipation #Dissipative system #Granular flow and fluidized beds #Granular material #Material Dynamics and Properties #Mathematics #Mechanics #Non-equilibrium thermodynamics #Physics #Power law #Statistical physics #Statistics #Theoretical and Computational Physics #Thermal diffusivity #Thermodynamics #cond-mat.soft
paper · pdf · doi:10.1103/physreve.82.051305
published in Physical Review E 82(5), 051305 (American Physical Society) · 14 pages, 11 figures
arxiv created 2010/06/01 · openalex publication_date 2010/11/23 · arxiv updated 2015/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present results from a detailed simulation of a quasi-two-dimensional dissipative granular gas, kept in a noncondensed steady state via vertical shaking over a rough substrate. This gas shows a weak power-law decay in the tails of its pair distribution functions, indicating clustering. This clustering depends monotonically on the dissipation coefficient and disappears when the sphere-sphere collisions are conservative. Clustering is also sensitive to the packing fraction. This gas also displays the standard nonequilibrium characteristics of similar systems, including non-Maxwellian velocity distributions. The diffusion coefficients are calculated over all the conditions of the simulations, and it is found that diluted gases are more diffusive for smaller restitution coefficients.