Size Segregation and Convection of Granular Mixtures Almost Completely Packed in the Rotating Thin Box

Details Size Segregation and Convection of Granular Mixtures Almost Completely Packed in the Rotating Thin Box Size Segregation and Convection of Granular Mixtures Almost Completely Packed in the Rotating Thin Box

1999-11-04

arxiv.org/abs/cond-mat/9911059v1

Physics

Condensed Matter

Statistical Mechanics

9 pages, 5 figures, PACS number(s): 45.70.-n, 45.70.Mg

Scientific paper

10.1103/PhysRevLett.84.4585

Size segregation of granular mixtures which are almost completely packed in a rotating drum is discussed with an effective simulation and a brief analysis. Instead of a 3D drum, we simulate 2D rotating thin box which is almost completely packed with granular mixtures. The phase inversion of radially segregated pattern which was found in a 3D experiment are qualitatively reproduced with this simulation, and a brief analysis is followed. Moreover in our simulation, a global convection appears after radial segregation pattern is formed, and this convection induces axially segregated pattern.

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