New Theoretical Solution of Stage-Discharge Relationship for Slit Weirs
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VIEW THE REPLYPublication: Journal of Irrigation and Drainage Engineering
Volume 144, Issue 3
Abstract
In this paper, the flow-process of a slit weir was analyzed on the basis of a theorem of dimensional analysis and incomplete self-similarity theory. The theoretically deduced stage-discharge formula then was calibrated using experimental data obtained for a ratio between the weir and the channel width, ranging from 0.05 to 0.25. The deduced stage-discharge relationship allowed measuring discharge values characterized by errors that, for 98% of the measured values, were less than or equal to . The performance of the proposed theoretical stage-discharge formula also was improved by introducing the Reynolds number (for 98.5% of the measured values the error was less than or equal to , and the error for 74% of the measured values was less than or equal to ).
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Published In
Journal of Irrigation and Drainage Engineering
Volume 144 • Issue 3 • March 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Feb 19, 2017
Accepted: Sep 25, 2017
Published online: Jan 5, 2018
Published in print: Mar 1, 2018
Discussion open until: Jun 5, 2018
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