Nature Communications (Feb 2016)

A dilation-driven vortex flow in sheared granular materials explains a rheometric anomaly

  • K. P. Krishnaraj,
  • Prabhu R. Nott

DOI
https://doi.org/10.1038/ncomms10630
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 8

Abstract

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Flowing granular materials exhibit fluid-like features, but not all of them can be described by extending fluid mechanics. Here, the authors show vortex flow in a granular layer sheared between coaxial cylinders, and attribute it to the effect that the material moves away from the sheared region.