Clustering of inelastic soft spheres in homogeneous turbulence
Thomas Burgener1, Dirk Kadau, Hans J Herrmann
1Institute for Building Materials, ETH Zurich, 8093 Zürich, Switzerland. buthomas@ethz.ch
Abstract:
In this paper we numerically investigate the influence of dissipation during particle collisions in an homogeneous turbulent velocity field by coupling a discrete element method to a lattice-Boltzmann simulation with spectral forcing. We show that even at moderate particle volume fractions the influence of dissipative collisions is important. We also investigate the transition from a regime where the turbulent velocity field significantly influences the spatial distribution of particles to a regime where the distribution is mainly influenced by particle collisions.
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