OptGate: A New Tool to Design and Analyze the Performance of Conventional and Self-Compensating Gated Pipe Systems
Publication: Journal of Irrigation and Drainage Engineering
Volume 149, Issue 11
Abstract
Surface irrigation is still by far the most common method adopted worldwide. For many developing countries, shifting to modern pressurized irrigation is hampered by system and energy costs. Gated pipes are an improvement on furrow irrigation. They offer an affordable modernization option for traditional surface systems. Designed to operate at low pressure, gated pipes have the potential to reduce conveyance losses, improve application uniformity, and minimize runoff, which is often responsible for spreading waterborne diseases and lowering water quality. However, very little pertinent data are available on their performance. In this paper, a new model (OptGate) for the design and performance analysis of self-compensated (SC) and conventional rectangular (CG) gated pipes is described and field validated. OptGate proved its reliability in simulating the discharges along the gated pipe with RMSE = 0.29 and for CG and SC, respectively, under a range of streaming head pressures ranging from 2 to 10 m with a 2-m step. The proposed model can provide users with the ability to predict system performance under different pressures, spacings, gate shapes and behaviors, pipe diameters, and land topography scenarios.
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Data Availability Statement
Some data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request: the software execution file (OptGate).
Acknowledgments
The authors acknowledge the Rolland Company for designing the SC gate and IRSTEA for testing it in its hydraulic lab.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 149 • Issue 11 • November 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Dec 7, 2022
Accepted: Aug 14, 2023
Published online: Sep 13, 2023
Published in print: Nov 1, 2023
Discussion open until: Feb 13, 2024
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