Effective surface dilatational viscosity of highly concentrated particle-laden interfaces
arXiv:1410.4729 · doi:10.1103/PhysRevE.90.053005
Abstract
The effective surface dilatational viscosity is calculated of a flat interface separating two immiscible fluids laden with half-immersed monodisperse rigid spherical non-Brownian particles in the limit of high particle concentration. The derivation is based upon the facts that (i) highly-concentrated particle arrays in a plane form hexagonal structure, and (ii) the dominant contribution to the viscous dissipation rate arises in the thin gaps between neighboring particles.
5 pages, 2 figures