title: Kolmogorov-Sinai entropy of the dilute wet granular gas.
abstract: We present an analytical expression for the Kolmogorov-Sinai entropy of a wet granular gas. The influence of the liquid is modeled by a hysteretic interaction force. For the dilute limit (two-particle collisions only), we find a simple expression accounting for the contribution of both the scattering states and the bound states in arbitrary dimensions. It is shown that the system is significantly more chaotic than a gas of (dry) hard spheres, as reflected by a pronounced increase of the Kolmogorov-Sinai entropy.
authors.affiliation: Max-Planck-Institute for Dynamics and Self-Organization, Bunsenstrasse 10, 37073 Goettingen, Germany. fingerle@ds.mpg.de
authors.forename: Axel
authors.initials: A
authors.lastname: Fingerle
authors.forename: Stephan
authors.initials: S
authors.lastname: Herminghaus
authors.forename: Vasily
authors.initials: V
authors.lastname: Zaburdaev
mesh_terms: D000465:Algorithms; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D019277:Entropy; D005740:Gases; D017711:Nonlinear Dynamics; D010316:Particle Size; D011208:Powders
chemical_list: D005740:Gases; D011208:Powders