Power injected in a granular gas

Details Power injected in a granular gas Power injected in a granular gas

2007-03-05

arxiv.org/abs/cond-mat/0703120v1

C. R. Physique 8, 641 (2007)

Physics

Condensed Matter

Statistical Mechanics

9 pages, 4 figures. Contribution to Proceedings of "Work, Dissipation, and Fluctuations in Nonequilibrium Physics", Brussels,

Scientific paper

10.1016/j.crhy.2007.05.010

A granular gas may be modeled as a set of hard-spheres undergoing inelastic collisions; its microscopic dynamics is thus strongly irreversible. As pointed out in several experimental works bearing on turbulent flows or granular materials, the power injected in a dissipative system to sustain a steady-state over an asymptotically large time window is a central observable. We describe an analytic approach allowing us to determine the full distribution of the power injected in a granular gas within a steady-state resulting from subjecting each particle independently either to a random force (stochastic thermostat) or to a deterministic force proportional to its velocity (Gaussian thermostat). We provide an analysis of our results in the light of the relevance, for other types of systems, of the injected power to fluctuation relations.

Affiliated with

Also associated with

No associations

Rating

Power injected in a 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 Power injected in a granular gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power injected in a granular gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-113603