Field-Scale Sprinkler Irrigation System Hydraulic Model. II: Hydraulic Simulation
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Irrigation and Drainage Engineering
Volume 140, Issue 7
Abstract
This paper describes a mathematical model for the hydraulic characterization of a field-scale solid set sprinkler irrigation system with a double-line lateral layout configuration. Formulation of the basic hydraulic equations along the mainline and laterals is based on manifold hydraulics. Lateral hydraulics remains the same as that described in a previously published paper, for systems with single-line laterals. A description of the mainline hydraulics of systems with a double-line lateral layout configuration, which requires the formulation and iterative solution of a system of nonlinear equations, is presented here. The hydraulic characterization functionality of the model, described in a previously published paper, serves as an interface for coupling the numerical solutions of the lateral and mainline hydraulic equations. In addition, this paper presents a description of the simulation functionality of the sprinkler hydraulic model and a related numerical algorithm, which is based on one-dimensional optimization. A comparison of model output with field data suggests that model performance is satisfactory. Example problems, consisting of field-scale solid set sprinkler systems with single-line and double-line laterals, are used to highlight the practical application of the hydraulic model.
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References
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Journal of Irrigation and Drainage Engineering
Volume 140 • Issue 7 • July 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 5, 2013
Accepted: Dec 30, 2013
Published online: Mar 11, 2014
Published in print: Jul 1, 2014
Discussion open until: Aug 11, 2014
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