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Dense Suspensions - Solid-Liquid Interactions at the Particle Scale

** Dense Suspensions - Solid-Liquid Interactions at the Particle Scale**, J. J. Derksen.

*Progress in Computational Fluid Dynamics*

**2012**,

*12*(2-3, SI), 103–111.

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### Abstract

Flows of solid-liquid suspensions span a multi-dimensional parameter space, with coordinates such as the Stokes number, the solids volume fraction, the density ratio, and Reynolds numbers. We are interested in systems with appreciable inertia effects - i.e., non-zero Stokes and Reynolds numbers - having density ratios of the order of one (typical for solid-liquid systems) and solids volume fractions of at least 0.1. Additional effects include strongly inhomogeneous solids distributions, non-Newtonian liquids, and sticky particles that tend to aggregate. This leads to a rich spectrum of interactions at the scale of individual particles. To reveal these we perform direct simulations of collections of a few thousand of particles carried by a liquid flow with resolution of the solid-liquid interfaces. For this we use the lattice-Boltzmann method supplemented with an immersed boundary approach.

### BibTeX

@article{ ISI:000305779300005, Author = {Derksen, J. J.}, Title = {Dense Suspensions - Solid-Liquid Interactions at the Particle Scale}, Journal = {Progress in Computational Fluid Dynamics}, Year = {2012}, Volume = {12}, Number = {2-3, SI}, Pages = {103-111}, Abstract = {Flows of solid-liquid suspensions span a multi-dimensional parameter space, with coordinates such as the Stokes number, the solids volume fraction, the density ratio, and Reynolds numbers. We are interested in systems with appreciable inertia effects - i.e., non-zero Stokes and Reynolds numbers - having density ratios of the order of one (typical for solid-liquid systems) and solids volume fractions of at least 0.1. Additional effects include strongly inhomogeneous solids distributions, non-Newtonian liquids, and sticky particles that tend to aggregate. This leads to a rich spectrum of interactions at the scale of individual particles. To reveal these we perform direct simulations of collections of a few thousand of particles carried by a liquid flow with resolution of the solid-liquid interfaces. For this we use the lattice-Boltzmann method supplemented with an immersed boundary approach.}, ISSN = {1468-4349}, Unique-ID = {ISI:000305779300005}, }

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