Thursday, June 13, 2013

1306.2892 (J. Wychowaniec et al.)

Compaction of cereal grain    [PDF]

J. Wychowaniec, I. Griffiths, A. Gay, A. Mughal
We report on simple shaking experiments to measure the compaction of a column of Firth oat grain. Such grains are elongated anisotropic particles with a bimodal polydispersity. In these experiments, the particle configurations start from an initially disordered, low-packing-fraction state and under vertical shaking evolve to a dense state with evidence of nematic-like structure at the surface of the confining tube. This is accompanied by an increase in the packing fraction of the grain.
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