Results 11 to 20 of about 4,665 (305)

Model for polygonal hydraulic jumps [PDF]

open access: yesPhysical Review E, 2012
We propose a phenomenological model for the polygonal hydraulic jumps discovered by Ellegaard et al., based on the known flow structure for the type II hydraulic jumps with a "roller" (separation eddy) near the free surface in the jump region. The model consists of mass conservation and radial force balance between hydrostatic pressure and viscous ...
Martens, Erik Andreas   +2 more
openaire   +4 more sources

Experimental study of the hydraulic jump length in a smooth trapezoidal channel

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2022
The article showed the result of investigation of the length of hydraulic jump in trapezoidal channel. In this study, the basic factors that affect the length (Lj) and roller length (Lr) of hydraulic jump were investigated by physical trapezoidal ...
Nguyen Minh Ngoc   +4 more
doaj   +1 more source

Hydraulic Jump in a Rotating Fluid [PDF]

open access: yesThe Physics of Fluids, 1964
A hydraulic jump occurs in a layer of fluid flowing down the inner wall of a rotating cylinder when the downstream conditions are adequate. The theory of these jumps is presented, together with supporting experimental data. The results confirm the similarity between free-surface flows under general rotation (and hence centripetal acceleration) and free-
Yih, Chia‐shun   +2 more
openaire   +2 more sources

Determination of position of hydraulic jump in a flume by using CFD and comparison with experiential results

open access: yesRomanian Journal of Ecology & Environmental Chemistry, 2020
Dams and hydraulic structures are used for the supply and control of water, which have great importance on human life. Sluice gate is one of the hydraulic control structures.
Ali Yildiz   +3 more
doaj   +1 more source

Theoretical Criterion for Stability of Free Hydraulic Jump on Adverse Stilling Basins [PDF]

open access: yesJournal of Hydraulic Structures, 2014
Hydraulic jump on adverse stilling basin is an unstable phenomenon which causes some complexities in controlling of the   jump. This paper considers the stability of free hydraulic jump on adverse stilling basins from a theoretical point of view.
Javad Farhoudi, Hossein Khalili Shayan
doaj   +1 more source

Predicting Hydraulic Jump Length on Rough Beds Using Data-Driven Models [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2018
The hydraulic jump can be used for some purpose such as dissipating the flow energy in order to prevent bed erosion; aerating water and facilitating the mixing procedure of chemical that used for water purification.
Payam Khosravinia   +2 more
doaj   +1 more source

Predicting of Hydraulic Jump Characteristics of Sudden Expanding Stilling Basins Using Evolutionary Algorithm [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2017
Sudden expanding stilling basins are one of the energy dissipaters which can dissipate most of the kinetic energy of the flow through hydraulic jump.
Kiyoumars Roushangar   +2 more
doaj   +1 more source

Modeling Length of Hydraulic Jump on Sloping Rough Bed using Gene Expression Programming [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2020
Generally, length of hydraulic jump is one the most important parameters to design stilling basin. In this study, the length of hydraulic jump on sloping rough beds was predicted using Gene Expression Programming (GEP) for the first time. The Monte Carlo
I Pasandideh   +3 more
doaj   +1 more source

Modelling rollers for shallow water flows [PDF]

open access: yes, 2013
Hydraulic jumps, roll waves or bores in open channel flows are often treated as singularities by hydraulicians while slowly varying shallow water flows are described by continuous solutions of the Saint-Venant equations. Richard & Gavrilyuk (J.
Thual, Olivier
core   +1 more source

Effect of Gate Opening Height on the Hydraulic Jump Characteristics in an Open Channel [PDF]

open access: yesJournal of Applied Fluid Mechanics
Hydraulic jump is often used to dissipate energy of flow in open channels. Despite extensive study on hydraulic jump, effects of tail gate operation on hydraulic jump remains underexplored in the standard literature.
P. D. Jiwane, A. D. Vasudeo, A. K. Singh
doaj   +1 more source

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