Flow Regimes in Debris Flow

  1. Dorrik A. V. Stow
  1. Paul Enos

Published Online: 29 APR 2009

DOI: 10.1002/9781444304473.ch5

Deep-Water Turbidite Systems

Deep-Water Turbidite Systems

How to Cite

Enos, P. (2009) Flow Regimes in Debris Flow, in Deep-Water Turbidite Systems (ed D. A. V. Stow), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444304473.ch5

Editor Information

  1. Department of Geology, University of Southampton, UK

Author Information

  1. State University of New York at Binghamton, Binghamton, New York 13901, USA

Publication History

  1. Published Online: 29 APR 2009
  2. Published Print: 11 NOV 1991

ISBN Information

Print ISBN: 9780632032624

Online ISBN: 9781444304473

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Keywords:

  • Bingham model;
  • debris-flow deposits;
  • alluvial and turbidity-current deposits;
  • Coulomb-viscous model;
  • Newtonian viscous fluid;
  • ‘rigid’ or ‘floating’ plug

Summary

The Bingham model has been suggested for the rheological behaviour of debris flow. Velocity plotted against yield strength uniquely defines turbulent and laminar flow in published experimental data on flow of Bingham materials. These regimes are not defined by a unique value of the Bingham number even though it includes both of the critical parameters, yield strength and velocity. Laminar flow in at least the final stages natural debris flows is suggested by sediments with parallel-to-flow or inclined clast fabric, preservation of delicate clasts, blocks projecting from the top of the deposit(?), and an absence of flutes.