Shape Dynamics of Interfacial Front in Rotating Cylinders
arXiv:cond-mat/9806067 · doi:10.1103/PhysRevE.59.2044
Abstract
The evolution of the interface propagation in a slowly rotating half-filled horizontal cylinder is studied using MRI. Initially, the cylinder contains two axially segregated bands of small and large particles with a sharp interface. The process of the formation of the radial core is clearly captured, and the shape and the velocity of the propagating front are calculated by assuming a one-dimensional diffusion process along the rotation axis of the cylinder and a separation of time scales associated with segregation in the radial and axial directions. We found that the interfacial dynamics are best described when a concentration dependent diffusion process is assumed.
6 pages, 6 figures (EPIC and EEPIC macros included)
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Cited by in corpus (10)
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- Size Segregation and Convection of Granular Mixtures Almost Completely Packed in the Rotating Thin Box
- MRI investigation of granular interface rheology using a new cylinder shear apparatus
- The mechanism of long-term coarsening of granular mixtures in rotating drums
- Radial segregation driven by axial convection
- Long-time asymptotics of non-degenerate non-linear diffusion equations