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Singular forces and pointlike colloids in lattice Boltzmann hydrodynamics

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Original languageEnglish
Article number026709
Pages (from-to)-
Number of pages11
JournalPhysical Review E - Statistical, Nonlinear and Soft Matter Physics
Volume77
Issue number2
DOIs
Publication statusPublished - Feb 2008

Abstract

We present an accurate method to include arbitrary singular distributions of forces in the lattice Boltzmann formulation of hydrodynamics. We validate our method with several examples involving Stokeslet, stresslet, and rotlet singularities, finding excellent agreement with analytical results. A minimal model for sedimenting particles is presented using the method. In the dilute limit, this model has accuracy comparable to, but computational efficiency much greater than, algorithms that explicitly resolve the size of the particles.

ID: 2774970