Granular clustering self-consistent analysis for general coefficients of restitution

E. Thiesen; W. A. M. Morgado

doi:10.1103/physreve.73.051303

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Granular clustering self-consistent analysis for general coefficients of restitution

E. Thiesen·W. A. M. Morgado

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Abstract

We study the equilibrium behavior of one-dimensional granular clusters and one-particle granular gases for a variety of velocity dependent coefficients of restitution $r$. We obtain equations describing of the long time behavior for the cluster's pressure, r.m.s. velocity and granular inter-spacing. We show that for extremely long times, clusters with velocity dependent coefficients of restitution are unstable and dissolve into homogeneous, quasi-elastic gases, but clusters with velocity independent $r$ are permanent. This is in accordance with hydrodynamic studies pointing to the transient nature of density instabilities for granular gases with velocity dependent $r$.

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BibTeX RIS

E. Thiesen, W. A. M. Morgado. 2006-05-16. Granular clustering self-consistent analysis for general coefficients of restitution. https://doi.org/10.1103/physreve.73.051303

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