Hydraulic Modeling of a Mixed Water Level Control Hydromechanical Gate
Publication: Journal of Irrigation and Drainage Engineering
Volume 137, Issue 7
Abstract
This article describes the hydraulic behavior of a mixed water level control hydromechanical gate present in several irrigation canals. The automatic gate is termed “mixed” because it can hold either the upstream water level or the downstream water level constant according to the flow conditions. Such a complex behavior is obtained through a series of side tanks linked by orifices and weirs. No energy supply is needed in this regulation process. The mixed flow gate is analyzed and a mathematical model for its function is proposed, assuming the system is at equilibrium. The goal of the modeling was to better understand the mixed gate function and to help adjust their characteristics in the field or in a design process. The proposed model is analyzed and evaluated using real data collected on a canal in the south of France. The results show the ability of the model to reproduce the function of this complex hydromechanical system. The mathematical model is also implemented in software dedicated to hydraulic modeling of irrigation canals, which can be used to design and evaluate management strategies.
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Acknowledgments
The authors would like to acknowledge the support provided by the BRL Exploitation company for the field measurements.
References
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Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 137 • Issue 7 • July 2011
Pages: 446 - 453
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Feb 12, 2010
Accepted: Oct 1, 2010
Published online: Jun 15, 2011
Published in print: Jul 1, 2011
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