Volume Compensation Method for Routing Irrigation Canal Demand Changes
Publication: Journal of Irrigation and Drainage Engineering
Volume 131, Issue 6
Abstract
This paper examines the problem of routing known water demands through gate-controlled, open-channel irrigation delivery systems. Volume-compensation principles were used to route multiple demands in multiple-pool canal systems. The volume-compensation method schedules each demand change individually under the assumption of a series of steady states and superimposes the individual results. Volume-compensation routing schedules were computed for two of the test cases proposed by the ASCE Task Committee on Canal Automation. Alternative routing schedules were computed with the gate-stroking method, which is an inverse solution of the unsteady-flow equations. Both solutions were tested through unsteady-flow simulation. While not as effective as gate-stroking solutions, volume-compensation solutions performed satisfactorily under ideal flow control conditions. When subjected to realistic operational constraints, specifically constraints on the flow regulation interval, and also to incorrect canal hydraulic roughness information, both methods performed similarly.
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References
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 131 • Issue 6 • December 2005
Pages: 494 - 503
Copyright
© 2005 ASCE.
History
Received: Nov 19, 2003
Accepted: Jan 4, 2005
Published online: Dec 1, 2005
Published in print: Dec 2005
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