Results 31 to 40 of about 420 (258)

Prediction Models For Free and Submerged Flows Below and Downstream Silled-Gates [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology, 2000
The characteristics of both the discharge below silled-sluice gates and the formedhydraulic jump are discussed briefly and equations are developed for their prediction. Bothcases of free and submerged flow are considered.
a.a alhamid
doaj   +1 more source

Estimation of waterfall height in the downstream of ogee spillways to hydraulic jump control [PDF]

open access: yesمدل‌سازی و مدیریت آب و خاک, 2021
IntroductionThe purpose of this study is to generate the relationships to directly calculate waterfall height at the downstream of the spillway to form a jump at the toe of the spillway and to prevent erosion and destruction of the downstream river bed ...
Ali Taheri Aghdam   +3 more
doaj   +1 more source

Effect of adverse slope on performance of USBR II stilling basin

open access: yesOpen Engineering, 2023
This article focuses on the United States Bureau of Reclamation (USBR) Type II stilling basin, which has chute blocks, an end dentated sill, and a flat floor.
Saleh Layla Ali Mohammed   +1 more
doaj   +1 more source

Experimental Study of the Effect of Vertical Screen Diameter on Energy Dissipation at Downstream Vertical Drop [PDF]

open access: yesمحیط زیست و مهندسی آب, 2021
Screens are one of the applications at the downstream of hydraulic structures in recent years to dissipate energy and prevent erosion of the channel bed.
Rasoul Daneshfaraz   +2 more
doaj   +1 more source

Analysis of the Hydraulic Jump Characteristics in a Stilling Basin to Avoid Dam Failure

open access: yesInternational Journal of Disaster Management, 2023
Flooding may occur due to dam failure at downstream of the spillway. Stilling basin of the spillway plays an important role in reducing turbulence generated by hydraulic jumps. It can avoid flooding and local scouring as well.
Eldina Fatimah   +4 more
doaj   +1 more source

Time evolution effect on the scour characteristics downstream of the sluice gate with the submerged hydraulic jump in a laboratory model [PDF]

open access: yesJournal of Hydraulic Structures, 2023
Sluice gates are utilized in dams and irrigation channels as regulating structures in the channel have the role of regulating the water level for proper water intake of upstream intakes.
Ali Mahdian Khalili, Mehdi Hamidi
doaj   +1 more source

Depositional Model for Turbidite Lobes in Complex Slope Settings Along Transform Margins: The Motta San Giovanni Formation (Miocene—Calabria, Italy)

open access: yesFrontiers in Earth Science, 2021
Intraslope lobes, or perched lobes, are attracting scientific interest because they represent a key archive between the shelf and the deep basin plain when looking at a complete source-to-sink depositional system across a continental margin and can form ...
Sébastien Rohais   +6 more
doaj   +1 more source

Effect of stilling basin shape on the hydraulic characteristics of the flow downstream radial gates

open access: yesAlexandria Engineering Journal, 2010
Barrage regulators are considered as one of the most important projects in the Egyptian irrigation practice, which is obvious by its controlling of the released discharge and both of upstream and downstream water levels. In the present time, the ministry
Abdelazim M. Ali, Yasser A. Mohamed
doaj   +1 more source

Prediction of hydraulic jump length downstream of multi-vent regulators using Artificial Neural Networks

open access: yesAin Shams Engineering Journal, 2016
Multi-vent regulators are widely used in Egypt. Operation system of gates affects the characteristics of the flow downstream (DS) of multi-vent regulators. The current study aimed toward introducing the artificial intelligence technique as a new modeling
Mohamed F. Sauida
doaj   +1 more source

Transient Air-Water Flow and Air Demand following an Opening Outlet Gate

open access: yesModelling and Simulation in Engineering, 2018
In Sweden, the dam-safety guidelines call for an overhaul of many existing bottom outlets. During the opening of an outlet gate, understanding the transient air-water flow is essential for its safe operation, especially under submerged tailwater ...
James Yang   +3 more
doaj   +1 more source

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