Liquid-induced transitions in granular media.
We investigate the effect of interstitial liquid on the physical properties of granular media by measuring the angle of repose as a function of the liquid content. The resultant adhesive forces lead to three distinct regimes in the observed behavior as the liquid content is increased: a granular regime in which the grains move individually, a correlated regime in which the grains move in correlated clusters, and a plastic regime in which the grains flow coherently. We discuss these regimes in terms of two proposed theories describing the effects of liquid on the physical properties of granular media.
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Physics Department, 225 Nieuwland Science, University of Notre Dame, Notre Dame, Indiana 46556, USA.
Albert
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Paskvan
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Barabási
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Vicsek
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Schiffer
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