Two-dimensional Granular Gas of Inelastic Spheres with Multiplicative Driving

Raffaele Cafiero; Stefan Luding; Hans Jürgen Herrmann

doi:10.1103/physrevlett.84.6014

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Two-dimensional Granular Gas of Inelastic Spheres with Multiplicative Driving

Raffaele Cafiero·Stefan Luding·Hans Jürgen Herrmann

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Abstract

We study a two-dimensional granular gas of inelastic spheres subject to multiplicative driving proportional to a power $|v(\vec{x})|^δ$ of the local particle velocity $v(\vec{x})$. The steady state properties of the model are examined for different values of $δ$, and compared with the homogeneous case $δ=0$. A driving linearly proportional to $v(\vec{x})$ seems to reproduce some experimental observations which could not be reproduced by a homogeneous driving. Furthermore, we obtain that the system can be homogenized even for strong dissipation, if a driving inversely proportional to

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Raffaele Cafiero, Stefan Luding, Hans Jürgen Herrmann. 2000-05-05. Two-dimensional Granular Gas of Inelastic Spheres with Multiplicative Driving. https://doi.org/10.1103/physrevlett.84.6014

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