New Stage-Discharge Relationship for Weirs of Finite Crest Length
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Volume 140, Issue 3
Abstract
The flow process of weirs of finite crest length is analyzed on the basis of the dimensional analysis and incomplete self-similarity theory. The crest length is incorporated in the functional stage-discharge relationship for weirs of finite crest length. The theoretically deduced stage-discharge formula was then calibrated using the experimental data compiled in this research. According to the current experimental data it is also concluded that the performance of the proposed stage-discharge formula is better than the previous dimensional stage-discharge formulae. Also, the proposed stage-discharge formula is applicable for all types of the weirs, i.e., long-crested, broad-crested, short-crested, and sharp-crested ones.
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Acknowledgments
The first and fourth authors gratefully acknowledge the research facility provided by the Center of Excellence for Evaluation and Rehabilitation of Irrigation and Drainage networks, University of Tehran.
References
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Journal of Irrigation and Drainage Engineering
Volume 140 • Issue 3 • March 2014
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 17, 2013
Accepted: Oct 3, 2013
Published online: Dec 12, 2013
Published in print: Mar 1, 2014
Discussion open until: May 12, 2014
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