Coarsening of self-organized clusters in binary mixtures of particles.
Experiments on patterned particle segregation in binary granular mixtures which are subjected to horizontal shaking have been performed. A novel mechanism for separation is found, where random forcing of one species by the other causes clustering. A pattern is formed which contains a series of stripes aligned orthogonal to the direction of the periodic forcing. The pattern coarsens with time and shows a power law behavior which is consistent with simple models of the geological process of "stone striping."
Mullin
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Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
D003102:Colloids; D003300:Copper; D055593:Geological Phenomena; D005844:Geology; D007221:Industry; D008863:Microspheres; D008954:Models, Biological; D010316:Particle Size; D010507:Periodicity; D012639:Seeds
D003102:Colloids; D003300:Copper