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- W4384828656 abstract "In the present time, the Ministry of Water Resources and Irrigation starts to construct new barrages across the Nile River and the main canals to replace the oldest ones, which are not able to withstand the requirements of increasing head difference between the upstream and downstream water levels upon the gates. This paper is focused on investigating experimentally the flow characteristics downstream the vertical sluice gates of Bahr Yousef regulator in case of flow over gate and flow under gate and the proper design for stilling basin with high efficiency in dissipation of water energy downstream the vertical gate with low cost. In the present study experimental work was carried out on a 2-D flume with 1.0 m wide, 26.0 m long, and 1.2 m deep, with discharges range from 22 to 395 l/s at the Hydraulics Research Institute laboratory. This experiment is physically based with scale 1:8.5. The experimental tests involved the observations and measurements of hydraulic phenomena in one single bay of the regulator in case of flow under/over gate. In these tests, there was a group of variables such as; the gate opening, flow rate, pressure head, upstream and downstream water levels, number of gates opening, and D50 of riprap protection. The influence of these parameters on downstream flow characteristics and the rip-rap size was investigated downstream the stilling basin. Comparative analysis between flow under the gate and flow over the gate was carried out. The results showed that the case of flow under gate gave more normal velocity distribution with low turbulent and high efficiency in dissipation of water energy downstream the vertical gates, and it was recommended for the operation of the regulator. Also, the obtained results showed that the size of riprap protection with D50 equal 0.2 m are stable, economic, and reduced the stilling basin length." @default.
- W4384828656 created "2023-07-21" @default.
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- W4384828656 date "2023-07-18" @default.
- W4384828656 modified "2023-09-26" @default.
- W4384828656 title "Investigation of flow characteristics downstream vertical sluice gates of Bahr Yousef regulator physical model" @default.
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- W4384828656 doi "https://doi.org/10.1080/23570008.2023.2236385" @default.
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