Mesoscopic Physics of Granular Flows
Alexei V. Tkachenko, Vachtang Putkaradze
Abstract
We present a description of granular dynamics based on the idea of differentiation between fluid and solid components. First, we construct a model of completely fluidized phase. Then we discuss a shear surface motion on the boundary of the bulk solid phase, induced by a moving wall. Our results include the thickness dependence of the velocity of a developed avalanche, density and velocity profiles in granular Couette flow experiment.
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