Polydisperse Segregation Down Inclines: Towards Degradation Models of Granular Avalanches
Segregation is a well known yet poorly understood phenomenon in granular flows. Whenever disparate particles flow together they separate by size, density and shape. If we wish to know how to separate particles more efficiently, or even how to keep them mixed together, we require a good understanding of both the phenomenology of the flow, and a quantitative analysis of the evolving particle size distribution towards a steady state. This chapter outlines the continuing effort towards this end, and provides a clue as to the future direction of our research.
KeywordsGranular materials Segregation Avalanches Kinetic sieving Grain size distribution
We would like to thank the members of the Particles, Grains and Complex Fluids Group at the University of Sydney, in particular Dr. Bjornar Sandnes for useful discussions. IE acknowledges grant DP0986876 from the Australian Research Council.
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