4 papers
Fractal Substructure of a Nanopowder
Thomas Schwager, Dietrich E. Wolf, Thorsten Poeschel
The structural evolution of a nano-powder by repeated dispersion and settling can lead to characteristic fractal substructures. This is shown by numerical simulations of a two-dime…
Coefficient of tangential restitution for the linear dashpot model
Volker Becker, Thomas Schwager, Thorsten Poeschel
The linear dashpot model for the inelastic normal force between colliding spheres leads to a constant coefficient of normal restitution, const., which makes this model very p…
Coefficient of Restitution for Viscoelastic Spheres: The Effect of Delayed Recovery
Thomas Schwager, Thorsten Poeschel
The coefficient of normal restitution of colliding viscoelastic spheres is computed as a function of the material properties and the impact velocity. From simple arguments it becom…
Granular Gas Cooling and Relaxation to the Steady State in Regard to the Overpopulated Tail of the Velocity Distribution
Thorsten Poeschel, Nikolai V. Brilliantov, Arno Formella
We present a universal description of the velocity distribution function of granular gases, , valid for both, small and intermediate velocities where is close to the ther…