Large particle segregation in two-dimensional sheared granular flows
Tomás Trewhela, J. M. N. T. Gray, Christophe Ancey
Abstract
We studied large particle segregation via experiments in a two-dimensional shear cell. Our results validated a recent equation relating particle-size segregation velocity, size ratio and shear rate, further explaining the role of size ratio on large particle segregation. Based on our observations, we showed and described the part played by particle rotation and expansion rate in large particle segregation mechanics.
Topics & Concepts
Particle (ecology)Particle sizeShear (geology)Materials scienceShear rateMechanicsGranular materialPhysicsGeologyComposite materialRheologyOceanographyPaleontologyGranular flow and fluidized bedsLandslides and related hazardsParticle Dynamics in Fluid Flows