Sediment Transport, Part I: Bed Load Transport
Publication: Journal of Hydraulic Engineering
Volume 110, Issue 10
Abstract
A method is presented which enables the computation of the bedload transport as the product of the saltation height, the particle velocity and the bed‐load concentration. The equations of motions for a solitary particle are solved numerically to determine the saltation height and particle velocity. Experiments with gravel particles (transported as bed load) are selected to calibrate the mathematical model using the lift coefficient as a free parameter. The model is used to compute the saltation heights and lengths for a range of flow conditions. The computational results are used to determine simple relationships for the saltation characteristics. Measured transport rates of the bed load are used to compute the sediment concentration in the bed‐load layer. A simple expression specifying the bed‐load concentration as a function of the flow and sediment conditions is proposed. A verification analysis using about 600 (alternative) data shows that about 77% of the predicted bed load‐transport rates are within 0.5 and 2 times the observed values.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 110 • Issue 10 • October 1984
Pages: 1431 - 1456
Copyright
Copyright © 1984 ASCE.
History
Published online: Oct 1, 1984
Published in print: Oct 1984
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