Abstract
We have studied numerically statistical properties of granular gas in a one-dimensional inelastic (viscoelastic) hard rod model under microgravity, which is designed to the mimic experimental granular-vibrated beds by introducing a velocity-dependent restitution coefficient (VDRC). Our systematic simulations show that various macroscopic properties of this model are quantitatively different from a linear combination of the previous simulations based on the constant restitution coefficient (CRC). The present results are significantly important to study a vibration response and dynamics of granular gas especially in microgravity experiment.
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