Clustering of inelastic soft spheres in homogeneous turbulence
  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. 
Thomas Burgener, Dirk Kadau, Hans J\"urgen Herrmann
physics.flu-dyn cond-mat.soft cond-mat.stat-mech physics.comp-ph