Research Article
Jun 1977
Transverse Mixing in Partially Stratified Flow
Authors: Sukru M. Sumer and Hugo B. Fischer, M.ASCEAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 103, Issue 6
Abstract
The paper reports the results of a laboratory study on the rate of transverse mixing in oscillatory estuary-type flow with density gradients typical of those found in real estuaries. Two sets of experiments were performed: one in a uniform channel with a trapezoidal cross section, and one in a channel with an irregular cross section. In the uniform channel density stratification reduced the rate of transverse mixing. A plot of the dimensionless transverse mixing coefficient versus Richardson Number is given. In the irregular channel, the density stratification had an opposite effect: the irregular side wall generated vertical mixing which induced transverse density gradients and transverse flows. It is concluded that real estuaries are probably similar to the irregular channel and that density stratification in real estuaries may hasten rather than impede transverse mixing.
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Published In
Journal of the Hydraulics Division
Volume 103 • Issue 6 • June 1977
Pages: 587 - 600
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Jun 1977
Published online: Feb 3, 2021
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Authors
Affiliations
Sukru M. Sumer
Grad. Research Asst., Univ. of Calif., Berkeley, Calif
Hugo B. Fischer, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of Calif., Berkeley, Calif
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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.