title: Transient structures in a granular gas.
abstract: A force-free granular gas is considered with an impact-velocity-dependent coefficient of restitution as it follows from the model of viscoelastic particles. We analyze structure formation in this system by means of three independent methods: molecular dynamics, numerical solution of the hydrodynamic equations, and linear stability analysis of these equations. All these approaches indicate that structure formation occurs in force-free granular gases only as a transient process.
authors.affiliation: Institut für Biochemie, Charité, Monbijoustrasse 2, 10117 Berlin, Germany.
authors.forename: Nikolai
authors.initials: N
authors.lastname: Brilliantov
authors.forename: Clara
authors.initials: C
authors.lastname: Salueña
authors.forename: Thomas
authors.initials: T
authors.lastname: Schwager
authors.forename: Thorsten
authors.initials: T
authors.lastname: Pöschel