Enhancing Mixing and Diffusion with Plastic Flow
Statistical Mechanics
2009-11-13 v1 Soft Condensed Matter
Abstract
We use numerical simulations to examine two-dimensional particle mixtures that strongly phase separate in equilibrium. When the system is externally driven in the presence of quenched disorder, plastic flow occurs in the form of meandering and strongly mixing channels. In some cases this can produce a fast and complete mixing of previously segregated particle species, as well as an enhancement of transverse diffusion even in the absence of thermal fluctuations. We map the mixing phase diagram as a function of external driving and quenched disorder parameters.
Cite
@article{arxiv.0706.2681,
title = {Enhancing Mixing and Diffusion with Plastic Flow},
author = {A. Libal and C. Reichhardt and C. J. Olson Reichhardt},
journal= {arXiv preprint arXiv:0706.2681},
year = {2009}
}