Convection and segregation in a flat rotating sandbox

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Convection and segregation in a flat rotating sandbox

A flat box, almost completely filled with a mixture of granulate, is rotated slowly about its horizontal central axis. In this experiment, a regular vortex flow of the granular material is observed in the cell plane. These vortex structures have a superficial analogy to convection rolls in dissipative structures of ordinary liquids. Whereas in the latter, the origin of the convection can often ...

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Size segregation and convection of granular mixtures almost completely packed in a thin rotating Box

We simulate size segregation in granular mixtures which are almost completely packed in a rotating drum. Instead of a 3D drum, we simulate a 2D thin rotating box which is almost completely packed with granular mixtures. The phase inversion of a radially segregated pattern which was found in a 3D experiment is qualitatively reproduced with this simulation. A global convection appears after a rad...

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

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ژورنال

عنوان ژورنال: New Journal of Physics

سال: 2012

ISSN: 1367-2630

DOI: 10.1088/1367-2630/14/1/015001