Hydrodynamic crystals: collective dynamics of regular arrays of spherical particles in a parallel-wall channel.
Simulations of over 10;{3} 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.
Department of Mechanical Engineering, Yale University, P.O. Box 20-8286, New Haven, Connecticut 06520, USA.
M
M
Baron
J
J
Bławzdziewicz
E
E
Wajnryb
D003198:Computer Simulation; D003460:Crystallization; D004247:DNA / Q000737:chemistry; D016014:Linear Models; D044085:Microfluidics; D008956:Models, Chemical; D010316:Particle Size; D011108:Polymers / Q000737:chemistry
D011108:Polymers; D004247:DNA