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.

9 pages, 6 figures

References in corpus (3)

• Heavy particle concentration in turbulence at dissipative and inertial scales
• Multifractal concentrations of inertial particles in smooth random flows
• Singular forces and point-like colloids in lattice Boltzmann hydrodynamics