Research Article
Jul 1971
Longitudinal Dispersion of Bed-Material Particles
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 97, Issue 7
Abstract
The movement of sediment particles is expressed in terms of steps and rest periods. A set of difference equations based on the Aris moment transformation and used previously for the longitudinal dispersion of suspended particles is modified to find the distribution functions of step length and rest period of tracer particles moving along an alluvial bed for a given flow condition. This study indicates that the rest periods follow an exponential distribution function and the step lengths follow a gamma distribution function. The comparison between the numerical solution of Aris' moment equations and Yang's general one-dimensional stochastic model indicates that both models lead to the same solution for the same condition.
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Published In
Journal of the Hydraulics Division
Volume 97 • Issue 7 • July 1971
Pages: 907 - 921
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jul 1971
Published online: Feb 3, 2021
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Chih Ted Yang Yang, AM.ASCE
Assoc. Prof. Sci., Illinois State Water Survey and Water Resour. Ctr. of Univ. of Illinois, Urbana, IL, USA
William W. Sayre, M.ASCE
Assoc. Prof., Dept. of Mech. and Hydr., Univ. of Iowa, Iowa City, IA, 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.