New Solution Method for Water Surface Profile along a Side Weir in a Circular Channel
Publication: Journal of Irrigation and Drainage Engineering
Volume 138, Issue 10
Abstract
Side weirs are commonly installed along the sides of open channels. Computation of water surface depth over side weirs is essential to determine their discharge. Analytical solutions for water surface profiles along a rectangular side weir are available only for triangular, rectangular and trapezoidal primary channels on the basis of constant specific energy. Given that circular channels are an important application in sewer systems, this research presents an elegant semianalytical solution (which involves incomplete elliptic integrals) for establishing the water surface profile along a rectangular side weir located in a circular. The solution is a useful computational tool for the evaluation and design of rectangular side weirs in open circular channels.
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Acknowledgments
The author gratefully acknowledges the support provided by the Center of Excellence for Evaluation and Rehabilitation of Irrigation and Drainage Networks, University of Tehran.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 138 • Issue 10 • October 2012
Pages: 948 - 954
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Sep 21, 2011
Accepted: Mar 22, 2012
Published online: Mar 24, 2012
Published in print: Oct 1, 2012
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