Hydrodynamic Irreversibility in Particle Suspensions with Non-Uniform Strain
Fluid Dynamics
2015-05-18 v1
Abstract
A dynamical phase transition from reversible to irreversible behavior occurs when particle suspensions are subjected to uniform oscillatory shear, even in the Stokes flow limit. We consider a more general situation with non-uniform strain (e.g. oscillatory channel flow), which is observed to exhibit markedly different dynamics. Self-organization and shear-induced migration only partially explain the delayed, simultaneous onset of irreversibility across the channel. The onset of irreversibility is accompanied by long-range correlated particle motion. This motion leads to particle activity even at the channel center, where the strain is negligible, and prevents the system from evolving into a reversible state.
Keywords
Cite
@article{arxiv.1003.1121,
title = {Hydrodynamic Irreversibility in Particle Suspensions with Non-Uniform Strain},
author = {Jeffrey S. Guasto and Andrew S. Ross and J. P. Gollub},
journal= {arXiv preprint arXiv:1003.1121},
year = {2015}
}