Discharge Coefficient of Triangular and Asymmetric Labyrinth Side Weirs Using the Nonlinear PLS Method
Publication: Journal of Irrigation and Drainage Engineering
Volume 142, Issue 11
Abstract
Side weirs are hydraulic control structures widely used in irrigation and drainage systems as well as wastewater treatment plants. These structures also serve as adjusting/diverting flow structures with a minimum head loss. In the present study, by applying experimental data of more than 400 laboratory tests and using the multivariable nonlinear partial least-squares (PLS) method, three nonlinear equations are proposed for discharge coefficient, , of triangular and asymmetric labyrinth side weirs. These equations relate the discharge coefficient to the relevant geometrical and hydraulic dimensionless characteristics of flow. Results indicate that the new proposed equations are more accurate compared to those of former studies, being the best tools to estimate the diverted flow discharge over the side weirs.
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Acknowledgments
This research was partially financed by the Water Research Council, affiliated with the Ministry of Energy of Iran.
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© 2016 American Society of Civil Engineers.
History
Received: Nov 11, 2015
Accepted: Apr 6, 2016
Published online: Jun 17, 2016
Published in print: Nov 1, 2016
Discussion open until: Nov 17, 2016
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