Bed topography and grain size in open channel bends

Bed topography and grain size in open channel bends ABSTRACT Engelund's (1974a, b) theoretical bed topography model for curved channels is modified and shown to fit natural channels when using values for the dynamic bed load friction coefficient of about 0·4–0·5. The dependence of this coefficient on grain size for flow in the lower flow regime is discussed. Using the bed topography model simultaneously, Allen's (1970a, b) theory for grain size variation over point bar profiles is shown to be broadly applicable. The interaction between sediment, flow and bed topography in bends is therefore adequately described. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sedimentology Wiley

Bed topography and grain size in open channel bends

Sedimentology, Volume 23 (3) – Jun 1, 1976

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Publisher
Wiley
Copyright
Copyright © 1976 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0037-0746
eISSN
1365-3091
DOI
10.1111/j.1365-3091.1976.tb00058.x
Publisher site
See Article on Publisher Site

Abstract

ABSTRACT Engelund's (1974a, b) theoretical bed topography model for curved channels is modified and shown to fit natural channels when using values for the dynamic bed load friction coefficient of about 0·4–0·5. The dependence of this coefficient on grain size for flow in the lower flow regime is discussed. Using the bed topography model simultaneously, Allen's (1970a, b) theory for grain size variation over point bar profiles is shown to be broadly applicable. The interaction between sediment, flow and bed topography in bends is therefore adequately described.

Journal

SedimentologyWiley

Published: Jun 1, 1976

References

  • A quantitative model of grain size and sedimentary structures in lateral deposits
    Allen, Allen
  • Rivers and their deposits
    Allen, Allen

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