Abstract
We show how liquid migrates in sheared unsaturated granular media using
a grain scale model for capillary bridges. Liquid is redistributed to
neighboring contacts after rupture of individual capillary bridges
leading to redistribution of liquid on large scales. The liquid profile
evolution coincides with a recently developed continuum description for
liquid migration in shear bands. The velocity profiles which are linked
to the migration of liquid as well as the density profiles of wet and
dry granular media are studied.
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