Rheology of confined non-Brownian suspensions
Soft Condensed Matter
2016-01-13 v1
Abstract
We study the rheology of confined suspensions of neutrally buoyant rigid monodisperse spheres in plane-Couette flow using Direct Numerical Simulations. We find that if the width of the channel is a (small) integer multiple of the sphere's diameter, the spheres self-organize into two-dimensional layers that slide on each other and the suspension's effective viscosity is significantly reduced. Each two-dimensional layer is found to be structurally liquid-like but their dynamics is frozen in time.
Keywords
Cite
@article{arxiv.1506.08722,
title = {Rheology of confined non-Brownian suspensions},
author = {Walter Fornari and Luca Brandt and Pinaki Chaudhuri and Cyan Umbert Lopez and Dhrubaditya Mitra and Francesco Picano},
journal= {arXiv preprint arXiv:1506.08722},
year = {2016}
}
Comments
Submitted to PRL. Supplemental Material added as an appendix. Includes links to youtube videos