Electrophorèse d'une assemblée de particules en milieu électrolyte infini

We consider an assemblage of N ≥ 1 solid and charged panicles embedded in an unbounded electrolyte. This work examines the rigid-body motion of such solids in an imposed electric field E∞. The advocated approach rests on the treatment of 6N + 1 boundary integral equations and circumvents determining the electric field E and the fluid flow within the electrolyte. Numerical results for assemblages of nine uniformly charged spheres or ellipsoids are reported. The interaction between near-contact particles may be very strong and deeply depends on the cluster nature.