Issue 13, 2010

Visualization of displacement fields in a sheared granular system

Abstract

We study experimentally the motion of particles in a wet granular system at the onset of flow. The suspension is density matched and subjected to a uniform confining pressure and uniform shear. Trajectories of the individual particles are visualized in three dimensions using laser sheet imaging. These trajectories reveal a flow field with pressure-dependent dilation and superdiffusive motions around the mean flow. Correlations in the particle displacements are analyzed as a function of applied confining pressure and applied shear. We find correlations with a pressure-dependant correlation length at small strains.

Graphical abstract: Visualization of displacement fields in a sheared granular system

Article information

Article type
Paper
Submitted
22 Dec 2009
Accepted
19 May 2010
First published
27 May 2010

Soft Matter, 2010,6, 3044-3049

Visualization of displacement fields in a sheared granular system

K. A. Lőrincz and P. Schall, Soft Matter, 2010, 6, 3044 DOI: 10.1039/B926817K

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