Results 11 to 20 of about 304 (213)

Experimental investigation on the characteristics of hydraulic jump in expanding channels with a water jet injection system [PDF]

open access: yesJournal of Hydraulic Structures, 2022
The high flow velocity downstream of weirs and gates can cause the destruction of erosive beds in rivers or even non-erosive channels. To reduce the flow's kinetic energy, structures are needed to consume this energy.
Shokoofeh Sharoonizadeh   +4 more
doaj   +1 more source

Experimental Investigation on Characteristics of Hydraulic Jump in Stilling Basin With Multi-Horizontal Submerged Jets [PDF]

open access: yesعلوم و مهندسی آبیاری, 1970
Stilling basin with multi-horizontal submerged jets is a new type of energy dissipater structure which causes to collapse excess energy by guiding the supercritical flow through jets and forming submerged hydraulic jump.
Mehrdad Moradi   +2 more
doaj   +1 more source

An Experimental and Numerical Investigation for Characteristics of Submerged Hydraulic Jump over Corrugated Beds [PDF]

open access: yesPort Said Engineering Research Journal, 2020
The present study was executed to compare flow parameters of submerged jump under gate using physical and numerical models. Twenty experimental runs were carried out to study the impact of spaced corrugated beds on basic characteristics of submerged ...
Hossam Ali, Ashraf Elhamaimi
doaj   +1 more source

Energy Dissipation Through Pool Downstream Vertical Gates [PDF]

open access: yesPort Said Engineering Research Journal, 2023
The hydraulic jump downstream gates leads to increase the length of stilling basin for protection hydraulic structures from failures. In this paper a new technique to increase energy dissipation between upstream and downstream through vertical gate with ...
tarek nasralla, ahmed awwad
doaj   +1 more source

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

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