Abstract
As hydraulic control structures, side weirs are generally employed for irrigation, drainage, and many other water regulation purposes. Researchers have studied the use of labyrinth geometry to increase the length of side weir crests while maintaining the same channel opening length. The present work proposes a novel inclined-bed triangular side weir design and evaluates its discharge characteristics. A total of 159 experimental tests were performed using different geometric designs and hydraulic variables. The experimental data were analyzed, and results were evaluated to develop a nonlinear equation for the discharge coefficient of the introduced side weir. An error analysis for the equation showed fairly acceptable accuracy, with most results falling within of the measured values. Final results demonstrate a significant improvement in efficiency of up to 78% and 39% for the discharge coefficient of the proposed design compared with conventional rectangular side weirs and orthogonal-bed triangular side weirs, respectively.
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Data Availability Statement
All data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 148 • Issue 2 • February 2022
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jul 29, 2021
Accepted: Oct 25, 2021
Published online: Dec 6, 2021
Published in print: Feb 1, 2022
Discussion open until: May 6, 2022
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- Daniela-Elena Gogoaşe Nistoran, Ştefan-Mugur Simionescu, Gabriela Cîrciumaru, Rareş-Andrei Chihaia, Numerical simulations of flow over a side weir for diversion structures and water intakes, IOP Conference Series: Earth and Environmental Science, 10.1088/1755-1315/1136/1/012035, 1136, 1, (012035), (2023).