Time: 02:20 p.m.
Place: Materials Day 2013, Ruhr-Universität Bochum, Bochum, Germany
Amorphous materials such as dense suspensions of polydisperse hard sphere colloidal particles and metallic glasses exhibit a rich phenomenology when exposed to a simple shear such as a planar Couette flow. In these systems, the flow may become heterogeneous despite the fact that the macroscopic stress is constant across the system [1,2]. However, both in computer simulations [1,3] and experiments  the observed velocity profile is unsteady with significant spatio-temporal fluctuations. This talk addresses this issue both via simulations as well via as analysis of the underlying hydrodynamic equations .
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