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arXiv · 0912.1657

Particle kinematics in a dilute, 3-dimensional, vibration-fluidized granular medium

Hong-Qiang Wang·Klebert Feitosa·Narayanan Menon
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Abstract

We report an experimental study of particle kinematics in a 3-dimensional system of inelastic spheres fluidized by intense vibration. The motion of particles in the interior of the medium is tracked by high speed video imaging, yielding a spatially-resolved measurement of the velocity distribution. The distribution is wider than a Gaussian and broadens continuously with increasing volume fraction. The deviations from a Gaussian distribution for this boundary-driven system are different in sign and larger in magnitude than predictions for homogeneously driven systems. We also find correlations between velocity components which grow with increasing volume fraction.

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Hong-Qiang Wang, Klebert Feitosa, Narayanan Menon. 2009-12-09. Particle kinematics in a dilute, 3-dimensional, vibration-fluidized granular medium. https://doi.org/10.1103/physreve.80.060304

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