Modeling the Behavior of Confined Colloidal Particles Under Shear Flow
Soft Condensed Matter
2014-09-18 v1
Abstract
We investigate the behavior of colloidal suspensions with different volume fractions confined between parallel walls under a range of steady shears. We model the particles using molecular dynamics (MD) with full hydrodynamic interactions implemented through the use of a lattice-Boltzmann (LB) fluid. A quasi-2d ordering occurs in systems characterized by a coexistence of coupled layers with different densities, order, and granular temperature. We present a phase diagram in terms of shear and volume fraction for each layer, and demonstrate that particle exchange between layers is required for entering the disordered phase.
Keywords
Cite
@article{arxiv.1409.5031,
title = {Modeling the Behavior of Confined Colloidal Particles Under Shear Flow},
author = {Frances E. Mackay and Kyle Pastor and Mikko Karttunen and Colin Denniston},
journal= {arXiv preprint arXiv:1409.5031},
year = {2014}
}