Generalized Flow Rating Equations at Prototype Gated Spillways
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VIEW THE REPLYPublication: Journal of Hydraulic Engineering
Volume 135, Issue 7
Abstract
Gated spillways are used to control flow in canals, rivers, and estuaries. Despite their widespread use, available flow ratings at these gated structures are largely derived from reduced-scale laboratory models. In this paper, generalized flow rating equations are developed based on field flow measurements collected mostly with an Acoustic Doppler Current Profiler at about 90 prototype gated spillways in South Florida. The proposed ratings, developed using dimensional analysis, agree well with field measurements. A single generalized equation that is applicable to all flow conditions was also developed. This generalized equation addresses the limitation of continuity of the calculations as flow transitions from one condition to another.
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Acknowledgments
The discussions and comments from the District’s Streamgauging, Engineering, and Hydraulics Support unit greatly improved the quality of the manuscript. The help and comments from Dr. B. J. Panigrahi are greatly acknowledged. The help from Dr. M. J. Chen and Dr. Jie Zeng in improving this manuscript figures is highly appreciated. The writers are also grateful for the constructive comments and criticism from the anonymous reviewers. Their time and efforts are highly appreciated.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 135 • Issue 7 • July 2009
Pages: 602 - 608
Copyright
© 2009 ASCE.
History
Received: Jan 24, 2006
Accepted: Feb 5, 2009
Published online: Jun 15, 2009
Published in print: Jul 2009
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