Reduction of Stilling Basin Length with Tall end Sill

Fathi-Moghadam, Manoochehr; Haghighipour, Sadegh; Lashkar-Ara, Babak; Aghtouman, Peyman

doi:10.1016/s1001-6058(10)60141-2

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…Figure ( 15) indicates the theoretical relative energy loss derived from equation ( 6) and the experimental results, a well agreement can be clearly seen. Consequently, the derived equations can be used for designing stilling basins supported with screens in practical applications Figure ( 13) The relationship between theoretical F 1 of equation ( 11) and experimental Froude number Figure ( 14) The relationship between corrected theoretical F 1 of equation (11) and experimental Froude number Figure ( 15) The relationship between theoretical ΔE/E 1 of equation ( 6) and experimental ΔE/E 1.…”

Section: Verificationsupporting

confidence: 65%

“…The water surface profiles in the case of changing the screen widths are shown in Figure ( 14) to Figure ( 16) for the submergence ratios 3.00, 4.00 and 4.50 and the relative widths of screen Bs/b 1.0, 0.92, 0.7 and 0.43. It can be clearly seen that the less of the relative screen width is, the higher water surface profile is front and back of the screen as shown in Figure ( 15)It was noticed that with increasing the Bs/b ratio, the lower water surface profile decreases as indicated in Figure ( 16). It can be concluded that the best results occur in the case of presence the screen with a whole width of the contracted part of the waterway.…”

Section: The Water Surface Profilementioning

confidence: 87%

“…From this figure a good agreement between the results of equation ( 15) and the experimental results. To verify the theoretical relative energy loss from equation ( 6), substituting the corrected theoretical Froude number calculated from equation (15) and other reminder variables from the experimental data.…”

Section: Verificationmentioning

confidence: 99%

“…(Bukreev, 2001) studied the characteristics of the hydraulic jump over a rectangular broad sill. Conditions of transition from a free state to a submerged state of flow over the sill are considered when the second critical depth is reached over the downstream edge of the sill -Moghadam et al (Fathi-Moghadam et al, 2011). studied experimentally forced hydraulic jumps in stilling basins for enforced cases due to tail water level or dam site arrangement.…”

Section: Introductionmentioning

confidence: 99%

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Effect of different screen widths on the submerged hydraulic jump characteristics

Elsawad

Elnikhili

Saleh

2021

The Egyptian International Journal of Engineering Sciences and

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Hydraulic jump is used to dissipate excessive kinetic energy in natural water ways. Screens fixed in the stilling basin to control the hydraulic jump location, depth and length four decades ago. In this study, screens with a constant height and different widths with the same screen relative area (Ar=0.285) were located behind the gate at a distance of 10 cm and tested under wide variance conditions of submerged hydraulic jump. Screens with different relative widths are tested to select the best screen relative widths. The screen relative width of 1.00 had a maximum energy loss and shortest length with a minimum tail water depth of the submerged hydraulic jump. The theoretical deduced equation of the relative depth of the submerged hydraulic jump had a higher asymmetric scatter with the experimental results around the line of equality, however a good agreement was present when a correction factor was used.

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Section: Verificationsupporting

confidence: 65%