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cond-mat.stat-mech2000
Free cooling of particles with rotational degrees of freedom
Timo Aspelmeier, Martin Huthmann, Annette Zippelius
Free cooling of granular materials is analyzed on the basis of a pseudo-Liouville operator. Exchange of translational and rotational energy requires surface roughness for spherical…
cond-mat.stat-mech2000
Dynamics of deviations from the Gaussian state in a freely cooling homogeneous system of smooth inelastic particles
M. Huthmann, J. A. G. Orza, R. Brito
The time dependence of deviations from the Gaussian state in a freely cooling homogeneous system of smooth inelastically colliding spheres is investigated by kinetic theory. We det…
cond-mat.stat-mech1999
Dynamics of inelastically colliding spheres with Coulomb friction: Relaxation of translational and rotational energy
Olaf Herbst, Martin Huthmann, Annette Zippelius
We investigate the free cooling of inelastic rough spheres in the presence of Coulomb friction. Depending on the coefficients of normal restitution and Coulomb friction , we…