Understanding the dynamics of segregation bands of simulated granular material in a rotating drum

Details Understanding the dynamics of segregation bands of simulated granular material in a rotating drum Understanding the dynamics of segregation bands of simulated granular material in a rotating drum

2004-09-25

arxiv.org/abs/cond-mat/0409674v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1209/epl/i2004-10227-1

Axial segregation of a binary mixture of grains in a rotating drum is studied using Molecular Dynamics (MD) simulations. A force scheme leading to a constant restitution coefficient is used and shows that axial segregation is possible between two species of grains made of identical material differing by size. Oscillatory motion of bands is investigated and the influence of the frictional properties elucidated. The mechanism of bands merging is explained using direct imaging of individual grains.

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