Results 21 to 30 of about 47,605 (348)

Investigation of Pressure Fluctuations of Hydraulic Jump on Rough Bed [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
A hydraulic jump is a sudden transition from a supercritical to subcritical flow with a broad range of turbulence Scales. The fluctuating nature of the flow such as oscillations of jump toe position and production of large eddies are visible in pseudo ...
Parastoo Parsamehr   +4 more
doaj   +1 more source

Turbulent shear stresses in hydraulic jumps, bores and decelerating surges [PDF]

open access: yes, 2011
In an open channel, a sudden rise in water level induces a positive surge, or bore, that may develop as a hydraulic jump in translation. When the surge propagates against an adverse slope, it decelerates until it becomes a stationary hydraulic jump. Both
Barnes   +26 more
core   +1 more source

Predicting hydraulic jump characteristics in a gradually expanding stilling basin with roughness elements by Sugeno Fuzzy Logic

open access: yesJournal of Hydroinformatics, 2022
The hydraulic behavior of a hydraulic jump can be challenging to estimate in order to design gradually expanding stilling basins with roughness elements on the bed.
Nasrin Hassanpour   +3 more
doaj   +1 more source

The effect of continuous natural roughness onhydraulic jump characteristics on the stone ramps

open access: yesمجله آب و خاک, 2017
Introduction: The hydraulic jump happens when flow transfers from supercritical regime to subcritical regime. The hydraulic jump on smooth bed is called the classic hydraulic jump.
M. F. Maghrebi, B. Mirzendehdel
doaj   +1 more source

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

Current knowledge in hydraulic jumps and related phenomena: A survey of experimental results [PDF]

open access: yes, 2009
The hydraulic jump is the sudden transition from a high-velocity open channel flow regime to a subcritical flow motion. The flow properties may be solved using continuity and momentum considerations.
Chanson, Hubert
core   +1 more source

Surface tension and the origin of the circular hydraulic jump in a thin liquid film [PDF]

open access: yes, 2019
It was recently claimed by Bhagat et al. (J. Fluid Mech. vol. 851 (2018), R5) that the scientific literature on the circular hydraulic jump in a thin liquid film is flawed by improper treatment and severe underestimation of the influence of surface ...
Andersen, Anders   +2 more
core   +3 more sources

Prediction of the hydraulic jump length on sloping rough beds using meta- heuristic neuro-fuzzy model and differential evolution algorithm [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2019
Generally, Hydraulic jumps usually happen at the downstream of hydraulic structures like ogee spillways. In addition, one of the parameters affecting the proper design of stilling basin is calculation of the hydraulic jump length. In this study, a hybrid
Rahim Gerami Moghadam   +3 more
doaj   +1 more source

Numerical Investigation of Hydraulic Jump Length and position in Ogee Chute [PDF]

open access: yesمهندسی منابع آب, 2018
One of the most effective strategies for energy dissipation of hydraulic structures is hydraulic jump .The position of hydraulic jump play an important role in design of stilling basin.
Mina Rouzegari   +2 more
doaj  

Characteristics of Undular Hydraulic Jumps: Experimental Apparatus and Flow Patterns [PDF]

open access: yes, 1995
In open channels, the transition from supercritical to subcritical flows is called a hydraulic jump. For low upstream Froude numbers, free-surface undulations develop downstream of the jump and the hydraulic jump is called an undular jump.
Chanson, Hubert, Montes, J. Sergio
core   +2 more sources

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