A three-phase mixture theory for particle size segregation in shallow granular free-surface flows By

  title={A three-phase mixture theory for particle size segregation in shallow granular free-surface flows By},
  author={B Thornton and John Mark Nicholas Timm Gray and Andrew J. Hogg},
Particle-size segregation within granular materials is of great technological significance yet it is still very poorly understood. There are several causes of segregation, but this paper focuses on kinetic sieving which is the dominant mechanism in dense gravity-driven shallow free-surface flows, or, granular avalanches. The segregation model is derived from a three-phase mixture theory composed of large particles, small particles and a passive interstitial fluid. Steady-state solutions are… CONTINUE READING
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