Hydrodynamic crystals: Collective dynamics of regular arrays of spherical particles in a parallel-wall channel

M. Baron, J. Bławzdziewicz, E. Wajnryb

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Simulations of over 103 hydrodynamically coupled solid spheres are performed to investigate collective motion of linear trains and regular square arrays of particles suspended in a fluid bounded by two parallel walls. Our novel accelerated Stokesian-dynamics algorithm relies on simplifications associated with the Hele-Shaw asymptotic far-field form of the flow scattered by the particles. The simulations reveal propagation of particle-displacement waves, deformation, and rearrangements of a particle lattice, propagation of dislocation defects in ordered arrays, and long-lasting coexistence of ordered and disordered regions.

Original languageEnglish
Article number174502
JournalPhysical Review Letters
Volume100
Issue number17
DOIs
StatePublished - Apr 28 2008

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