Universality class of the reversible-irreversible transition in sheared suspensions

Menon, Gautam I. ; Ramaswamy, Sriram (2009) Universality class of the reversible-irreversible transition in sheared suspensions Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 79 (6). 061108_1-061108_4. ISSN 1539-3755

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Official URL: http://pre.aps.org/abstract/PRE/v79/i6/e061108

Related URL: http://dx.doi.org/10.1103/PhysRevE.79.061108

Abstract

Collections of non-Brownian particles suspended in a viscous fluid and subjected to oscillatory shear at very low Reynolds number have recently been shown to exhibit a remarkable dynamical phase transition separating reversible from irreversible behaviour as the strain amplitude or volume fraction are increased. We present a simple model for this phenomenon, based on which we argue that this transition lies in the universality class of the conserved DP models. This leads to predictions for the scaling behaviour of a large number of experimental observables. Non-Brownian suspensions under oscillatory shear may thus constitute the first experimental realization of an inactive-active phase transition which is not in the universality class of conventional directed percolation.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:40164
Deposited On:21 May 2011 11:01
Last Modified:17 May 2016 22:21

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