title: Clustering of inelastic soft spheres in homogeneous turbulence.
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.
authors.affiliation: Institute for Building Materials, ETH Zurich, 8093 Zürich, Switzerland. buthomas@ethz.ch
authors.forename: Thomas
authors.initials: T
authors.lastname: Burgener
authors.forename: Dirk
authors.initials: D
authors.lastname: Kadau
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Herrmann
mesh_terms: D003102:Colloids / Q000737:chemistry*; D003198:Computer Simulation; D004548:Elasticity; D006244:Hardness; D008863:Microspheres; D008956:Models, Chemical; D012212:Rheology / Q000379:methods*
chemical_list: D003102:Colloids