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arXiv · cond-mat/9806067

Shape Dynamics of Interfacial Front in Rotating Cylinders

Gerald H. Ristow·Masami Nakagawa
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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.

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Gerald H. Ristow, Masami Nakagawa. 1998-10-20. Shape Dynamics of Interfacial Front in Rotating Cylinders. https://doi.org/10.1103/physreve.59.2044

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