Eulerian-Eulerian Simulation of Sedimentation of Uniformly-sized, non-Brownian Spheres in Viscous Fluids

Eulerian-Eulerian Simulation of Sedimentation of Uniformly-sized, non-Brownian Spheres in Viscous Fluids

A Eulerian-Eulerian 3-dimensional CFD-model has been built in order to study the sedimentation process of uniformly-sized, non-Brownian spheres in a viscous fluid. It is shown that proper agreement with experimental data for high particle loadings strongly depends on using a correct drag force relat...

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Hauptverfasser: Balakin, Boris V, Hoffmann, Alex C, Kosinski, Pawel, Rhyne, Lee D
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Kosinski, Pawel
Rhyne, Lee D
description A Eulerian-Eulerian 3-dimensional CFD-model has been built in order to study the sedimentation process of uniformly-sized, non-Brownian spheres in a viscous fluid. It is shown that proper agreement with experimental data for high particle loadings strongly depends on using a correct drag force relation. Convection currents in the carrier phase were observed during simulation. They were found to present a hydraulic resistance to the solids settling. The particle interactions were implemented through a solids stress tensor dependent on the viscosity of the carrier phase and the solids local volume fraction. The completed model was validated by comparison with experimental data.
doi_str_mv 10.1063/1.2991030
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title Eulerian-Eulerian Simulation of Sedimentation of Uniformly-sized, non-Brownian Spheres in Viscous Fluids
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