Collision statistics in a dilute granular gas fluidized by vibrations in low gravity
arXiv:cond-mat/0512304 · doi:10.1209/epl/i2005-10589-8
Abstract
We report an experimental study of a dilute "gas" of inelastically colliding particles excited by vibrations in low gravity. We show that recording the collision frequency together with the impulses on a wall of the container gives access to several quantities of interest. We observe that the mean collision frequency does not scale linearly with the number N of particles in the container. This is due to the dissipative nature of the collisions and is also directly related to the non extensive behaviour of the kinetic energy (the granular temperature is not intensive).
to be pubished in Europhysics Letters (May/June 2006)
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- Statistics of a 2D immersed granular gas magnetically forced in volume
- New corner stones in dissipative granular gases
- On the role of Boundary Condition on the Speed- & Impact- Distributions in Dissipative Granular Gases in Knudsen Regime Excited by Vibration
- Is Dissipative Granular Gas in Knudsen Regime Excited by Vibration Biphasic ?