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Rheology Of Dense Granular Flow

Author

Listed:
  • THOMAS C. HALSEY

    (ExxonMobil Research and Engineering, Route 22 East, Annandale, NJ 08801, USA)

  • DENIZ ERTAŞ

    (ExxonMobil Research and Engineering, Route 22 East, Annandale, NJ 08801, USA)

  • GARY S. GREST

    (Sandia National Laboratories, Albuquerque, NM 87185, USA)

  • LEONARDO E. SILBERT

    (Sandia National Laboratories, Albuquerque, NM 87185, USA)

  • DOV LEVINE

    (Department of Physics, Technion, Haifa, 32000, Israel)

Abstract

We have performed numerical studies of dense granular flows on an incline with a rough bottom in two and three dimensions. This flow geometry produces a constant density profile that satisfies scaling relations of the Bagnold, rather than the viscous, kind. No surface-only flows were observed. The bulk and the surface layer differ in their rheology, as evidenced by the change in principal stress directions near the surface; a Mohr–Coulomb type failure criterion is seen only near the surface. In the bulk, normal stress anomalies are observed both in two and in three dimensions. We do not observe isostaticity in static frictional piles obtained by arresting the flow.

Suggested Citation

  • Thomas C. Halsey & Deniz Ertaş & Gary S. Grest & Leonardo E. Silbert & Dov Levine, 2001. "Rheology Of Dense Granular Flow," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 4(04), pages 419-428.
    • Handle: RePEc:wsi:acsxxx:v:04:y:2001:i:04:n:s0219525901000279
    DOI: 10.1142/S0219525901000279
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