Velocity Distribution in a Viscous Granular Gas

Details Velocity Distribution in a Viscous Granular Gas Velocity Distribution in a Viscous Granular Gas

2004-04-16

arxiv.org/abs/cond-mat/0404405v2

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevE.71.032301

We investigate the velocity relaxation of a viscous one-dimensional granular gas, that is, one in which neither energy nor momentum is conserved in a collision. Of interest is the distribution of velocities in the gas as it cools, and the time dependence of the relaxation behavior. A Boltzmann equation of instantaneous binary collisions leads to a two-peaked distribution with each peak relaxing to zero velocity as 1/t while each peak also narrows as 1/t. Numerical simulations of grains on a line also lead to a double-peaked distribution that narrows as 1/t. A Maxwell approximation leads to a single-peaked distribution about zero velocity with power-law wings. This distribution narrows exponentially. In either case, the relaxing distribution is not of Maxwell-Boltzmann form.

Affiliated with

Also associated with

No associations

Rating

Velocity Distribution in a Viscous Granular Gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Velocity Distribution in a Viscous Granular Gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Velocity Distribution in a Viscous Granular Gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-400136