Research Article
Aug 1974
Simple Method for Predicting Dispersion in Streams
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VIEW THE REPLYPublication: Journal of the Environmental Engineering Division
Volume 100, Issue 4
Abstract
A knowledge of the rate at which pollutants disperse in streams is essential to stream management. It was the purpose of this investigation to develop a simple method for predicting longitudinal dispersion coefficients from mean flow parameters. An analogy was used between the linear one-dimensional flow equation and the linear one-dimensional dispersion equation to define a relation between the solute dispersion coefficient and the flow dispersion coefficient. The flow dispersion coefficient is calculated from mean flow parameters, thus allowing predictions of solute dispersion once the relation between the two is known. Dispersion coefficients calculated by the simple method are compared with observed values for 18 streams that cover a wide range of flow conditions. A standard error of estimate of 30% is indicated.
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Published In
Journal of the Environmental Engineering Division
Volume 100 • Issue 4 • August 1974
Pages: 997 - 1011
Copyright
© 1974 American Society of Civil Engineers.
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Published in print: Aug 1974
Published online: Feb 11, 2021
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Raul S. McQuivey, M.ASCE
Res. Hydro.; U.S. Geological Survey, Bay St., St. Louis, MS, USA
Thomas N. Keefer, AM.ASCE
Res. Hydro.; U.S. Geological Survey, Bay St., St. Louis, MS, 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.