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Article Dans Une Revue Journal of Statistical Mechanics: Theory and Experiment Année : 2006

Microgravity experiments on vibrated granular gases in a dilute regime: non-classical statistics

Résumé

We report on an experimental study of a dilute gas of steel spheres colliding inelastically and excited by a piston performing sinusoidal vibration, in low gravity. Using improved experimental apparatus, here we present some results concerning the collision statistics of particles on a wall of the container. We also propose a simple model where the non-classical statistics obtained from our data are attributed to the boundary condition playing the role of a 'velostat' instead of a thermostat. The significant differences from the kinetic theory of usual gas are related to the inelasticity of collisions.

Dates et versions

hal-00115279 , version 1 (20-11-2006)

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Marc Leconte, Yves Garrabos, Eric Falcon, Carole Lecoutre-Chabot, Fabien Palencia, et al.. Microgravity experiments on vibrated granular gases in a dilute regime: non-classical statistics. Journal of Statistical Mechanics: Theory and Experiment, 2006, P07012 (10 p.). ⟨10.1088/1742-5468/2006/07/P07012⟩. ⟨hal-00115279⟩
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