http://arxiv.org/abs/1702.07271
We present the linear rheological instability triggered by the interplay of the shear rheology and Keplerian differential rotation of incompressible dense granular fluids. Instability sets in granular fluids, where the viscosity parameter grows faster than the square of the local shear rate (strain rate) at constant pressure. Found instability can play a crucial role in the formation of observed structures in planetary rings, as well as promote structure formation in protoplanetary disks dense granular material.
L. Poniatowski and A. Tevzadze
Fri, 24 Feb 17
38/50
Comments: 5 pages, 3 figures. Comments welcome