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 influ...

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Bibliographic Details
Published in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2012-09, Vol.86 (3 Pt 2), p.036321-036321, Article 036321
Main Authors: Burgener, Thomas, Kadau, Dirk, Herrmann, Hans J
Format: Article
Language:English
Subjects:
Colloids - chemistry
Computer Simulation
Elasticity
Hardness
Microspheres
Models, Chemical
Rheology - methods
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Summary: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.
ISSN:1539-3755
1550-2376
DOI:10.1103/PhysRevE.86.036321