Title

Self-Organized Phase Segregation In a Driven Flow of Dissimilar Particles Mixtures

Document Type

Article

Publication Date

9-1-2003

Department

Physics and Astronomy

Abstract

Self-organized patterns in an immiscible fluid mixture of dissimilar particles driven from a source at the bottom are examined as a function of hydrostatic pressure bias by a Monte Carlo computer simulation. As the upward pressure bias competes with sedimentation due to gravity, a multi-phase system emerges: a dissociating solid phase from the source is separated from a migrating gas phase towards the top by an interface of mixed (bicontinuous) phase. Scaling of solid-to-gas phase with the altitude is nonuniversal and depends on both the range of the height/depth and the magnitude of the pressure bias. Onset of phase separation and layering is pronounced at low bias range.

Publication Title

International Journal of Modern Physics C

Volume

14

Issue

7

First Page

955

Last Page

962

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