Rotationally driven gas of inelastic rough spheres
arXiv:cond-mat/0012427
Abstract
We study a two-dimensional gas of inelastic rough spheres, driven on the rotational degrees of freedom. Numerical simulations are compared to mean-field (MF) predictions with surprisingly good agreement for strong coupling of rotational and translational degrees of freedom -- even for very strong dissipation in the translational degrees. Although the system is spatially homogeneous, the rotational velocity distribution is essentially Maxwellian. Surprisingly, the distribution of tangential velocities is strongly deviating from a Maxwellian. An interpretation of these results is proposed, as well as a setup for an experiment.
arXiv comment4 pages, 4 figures (6 postscript files), submitted to PRL
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- Equation of state of a granular gas homogeneously driven by particle rotations
- Energy nonequipartition in gas mixtures of inelastic rough hard spheres: The tracer limit
- Interplay between polydispersity, inelasticity, and roughness in the freely cooling regime of hard-disk granular gases
- Energy Production Rates of Multicomponent Granular Gases of Rough Particles. A Unified View of Hard-Disk and Hard-Sphere Systems
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- Intruders in disguise: Mimicry effect in granular gases
- Asymptotic behavior of the velocity distribution of driven inelastic gas with scalar velocities: analytical results
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- Asymptotic velocity distribution of a driven one dimensional binary granular Maxwell gas
- Exact transport coefficients from the inelastic rough Maxwell model of a granular gas
- Statistics of a 2D immersed granular gas magnetically forced in volume