New Theoretical Solution of the Outflow Process for a Weir with Complex Shape
Publication: Journal of Irrigation and Drainage Engineering
Volume 142, Issue 10
Abstract
In this paper, the outflow process of a weir with an irregular shape is studied using dimensional analysis and the incomplete self-similarity theory. The new unique stage–discharge relationship, which is deduced theoretically, represents a novel and comprehensive equation to describe the weir outflow process for a full range of flow and different geometric variables of weirs, including finite-crested weirs, broad-crested weirs with positive or negative crest slope, broad-crested weirs with an upstream, downstream, or both upstream and downstream crest ramps, and, triangular weirs with an upstream or downstream ramp. Finally the proposed stage–discharge relationship is calibrated using measurements available in literature.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 142 • Issue 10 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jan 22, 2015
Accepted: Feb 9, 2016
Published online: May 12, 2016
Published in print: Oct 1, 2016
Discussion open until: Oct 12, 2016
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