Isolating segregation mechanisms in a split-bottom cell.
作者： K. M. Hill , Yi Fan
DOI: 10.1103/PHYSREVLETT.101.088001
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摘要: We study the segregation of mixtures particles in a split-bottom cell to isolate three possible driving mechanisms for densely sheared granular mixtures: gravity, porosity, and velocity gradients. find that gravity alone does not drive associated with particle size without sufficiently large porosity or gradient. A gradient, however, appears be capable both material density. In all cases, final state is approached exponentially.
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