Corpus ID: 237571863

Surface band segregation and internal convection in rotating sphere densely filled with granular material: Experiments

@inproceedings{Sun2021SurfaceBS,
  title={Surface band segregation and internal convection in rotating sphere densely filled with granular material: Experiments},
  author={Weitao Sun},
  year={2021}
}
  • Weitao Sun
  • Published 24 August 2021
  • Physics
While granular segregation in partially filled containers has been studied extensively, granular dynamics in densely filled spheres is not fully understood. Here, surface band segregation and granular convection are reported in a rotating sphere of highly compacted glass beads. Distinct from Rayleigh–Bénard convection, granular convection has a butterfly-shaped structure with vortexes of alternating layers of small/large beads, which is stable and independent of the sphere size. Two concentric… Expand

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