2017
DOI: 10.1016/j.jcp.2016.12.018
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An integral equation formulation for rigid bodies in Stokes flow in three dimensions

Abstract: We present a new derivation of a boundary integral equation (BIE) for simulating the threedimensional dynamics of arbitrarily-shaped rigid particles of genus zero immersed in a Stokes fluid, on which are prescribed forces and torques. Our method is based on a single-layer representation and leads to a simple second-kind integral equation. It avoids the use of auxiliary sources within each particle that play a role in some classical formulations. We use a spectrally accurate quadrature scheme to evaluate the co… Show more

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Cited by 40 publications
(44 citation statements)
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“…Sedimentation requires overcoming a few challenges. First, the bodies must be mobile, as has been accomplished in previous work for dense concentrations of deformable and rigid bodies [2,17,18,57,59,62]. Second, contacts and overlap between bodies must be prevented.…”
Section: Discussionmentioning
confidence: 99%
“…Sedimentation requires overcoming a few challenges. First, the bodies must be mobile, as has been accomplished in previous work for dense concentrations of deformable and rigid bodies [2,17,18,57,59,62]. Second, contacts and overlap between bodies must be prevented.…”
Section: Discussionmentioning
confidence: 99%
“…Besides the moving overlapping grid approach employed here, a variety of classical numerical techniques for moving complex geometries have been extended to this regime, including arbitrary Lagrangian-Eulerian (ALE) methods [16][17][18], level-set methods [19,20], fictitious domain methods [21], embedded boundary methods [22] and immersed boundary methods [11,[23][24][25][26][27][28][29][30][31][32][33][34]. Recently, new approaches to handle moving geometries have also been developed for this regime, such as methods based on boundary-integral equations [35] and implicit mesh discontinuous Galerkin methods [36,37].…”
Section: Introductionmentioning
confidence: 99%
“…A recent publication considers three-dimensional simulations of rigid bodies [17], but uses a different contact algorithm than the STIV we used. It is unclear that this contact algorithm will be able to resolve dense suspensions where there are many contacts.…”
Section: Discussionmentioning
confidence: 99%