Research Article
Jun 1971
Deposition of Sediment in Transient Flow
Publication: Journal of the Hydraulics Division
Volume 97, Issue 6
Abstract
An analytical method of predicting the change in riverbed elevation at transient phases is developed. A computer solution is presented along with the method in order that a sample computation can be made to check the stability and convergency of the method. For channels in which the sediment-laden water can be considered completely homogeneous and in which the velocity can be considered uniform over the cross-section, equations of continuity and the equation of motion of sediment-laden water are presented. Introducing the assumption that the difference between the original bed slope and the new bed slope within a short period is very small, these three basic partial differential equations are successfully reduced to two partial differential equations. The method of characteristics is then employed to solve for the mean velocity, v, and the mean depth of flow, h. In order to estimate the sediment deposit thickness, z, the equation of continuity for sediment is transformed directly into finite-difference form.
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Published In
Journal of the Hydraulics Division
Volume 97 • Issue 6 • June 1971
Pages: 837 - 849
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jun 1971
Published online: Feb 3, 2021
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Authors
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Fred F. M. Chang, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., South Dakota State Univ., Brookings, SD, USA
Dennis L. Richards
Hydr. Engr., Federal Highway Administration, U.S. Dept. of Transp., Kansas City, KS, USA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.