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Vol.3, No.2, 2024: pp.76-82

Efficient performance of compound gates in flow energy dissipation


Ahmed A.A. Alkattan1
, Bahzad M.A. Noori2
, Mwafaq Y.M. Aljburi3

1Dams and Water Resources Engineering Department, College of Engineering, University of Mosul, Iraq
2Civil Department, College of Engineering, Douhok University, Iraq
3Dams and Water Resources Engineering Department, College of Engineering, Mosul University, Iraq

Received: 15 March 2024
Revised: 16 May 2024
Accepted: 5 June 2024
Published: 30 June 2024


A study was conducted to evaluate the performance of compound gates in flow energy dissipation using a two-tiered structure (15 and 30 cm high). Four heights of the lower opening of the structure (0, 1, 2, 3 cm) were used, and seven values of flow depth over the edge of the structure (2, 3, 4, 5, 6, 7, 8 cm) were used for each case. The study concluded that the efficiency of compound gates in dissipating flow energy decreases with increasing flow depth over the edge of the structure. However, this performance increases in hydraulic structures with high elevations, especially when the height of the opening under those gates is increased, provided that the flow depth over the edge of these structures is constant. Compound gates are considered effective energy dissipaters for low-elevation structures if the opening under the gate is small.


Hydraulic structures, Open channel flow, Energy dissipation, Weirs, Compound gates


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© 2024 by the authors. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)

Volume 3
Number 2
June 2024.



How to Cite

A.A.A. Alkattan, B.M.A. Noori, M.Y.M. Aljburi, Efficient Performance of Compound Gates in Flow Energy Dissipation. Advanced Engineering Letters, 3(2), 2024: 76-82.

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