Velocity distributions in a cooling granular gas

Details Velocity distributions in a cooling granular gas Velocity distributions in a cooling granular gas

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006smpr.confe..49p&link_type=abstract

Proceedings of the International conference on Statistical Mechanics of Plasticity and Related Instabilities. August 29-Septembe

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We use event-driven molecular dynamics simulations to study a freely-evolving granular gas. The system initially loses energy (or cools) in a homogeneous cooling state (HCS). However, fluctua- tions in the velocity and density fields grow with time and make the system inhomogeneous. This asymptotic state is referred to as the inhomogeneous cooling state (ICS). In the HCS, the scaled velocity distributions deviate from the Maxwell-Boltzmann (MB) function. However, they revert to the MB form in the ICS.

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