DONATE

IAHR Document Library


« Back to Library Homepage « Journal of Hydraulic Research 1990 Issue 1

Prediction of entrainment conditions for nonuniform, noncohesive sediments

Author(s): C. S. James

Linked Author(s):

Keywords:

Abstract: A general model is presented for predicting entrainment conditions for nonuniform, noncohesive sediments. The model is based on an analysis of the moments of forces acting on a particle at the condition of incipient motion. Particle geometry and packing arrangement are accounted for as well as variations of near bed flow velocity and drag and lift coefficients for a wide range of flow conditions. Model predictions agree well with laboratory and field measurements for uniform sediments and for protrusion and relative size effects.

DOI: https://doi.org/10.1080/00221689009499145

Year: 1990

Copyright © 2022 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions