Results 21 to 30 of about 2,842,459 (265)
Developed log-wake law and turbulent behaviour of flow along a stepped spillway
Water Practice & Technology, 2023 The log-wake law for turbulent current has been developed and tested with laboratory data on turbulent flow in smooth pipes. However, flow with turbulence and vortices in a stepped spillway have not been described.
Panaitep Pongcharoenpit +2 more
semanticscholar +1 more source
Assessment of submerged floor water jets to minimize the scour downstream from a stepped spillway
Journal of Water and Land Development, 2023 Because of hydraulic jump, the scour downstream a stepped spillway is the most confusing issue that endangers the overall stability of the spillway. In this paper, thirty-six exploratory runs are described to explore the impact of utilizing submerged ...
M. M. Ibrahim +2 more
semanticscholar +1 more source
World Journal of Advanced Research and Reviews, 2023 Stepped spillways are hydraulic components of dams used to dissipate energy downstream of the dams. Numerous studies have been conducted to understand the hydraulics of flow on stepped spillways, primarily in laboratory settings.
Sina Najibi
semanticscholar +1 more source
CFD Modelling of a Stepped Spillway with Various Step Layouts [PDF]
Mathematical Problems in Engineering, 2019 A traditional stepped spillway is prone to cavitation risks. To improve its hydraulic behaviors, distorted step faces and pool weirs are devised. By numerical modelling, comparative studies are conducted to look into the flow features. The pressures on step surfaces of the unconventional layouts exhibit 3D distributions.
Shicheng Li, Qiulin Li, James Yang
openaire +2 more sources
Study Effect of Fluctuations of Pressure Factors of Stepped Short-throat Shaft Spillways on Hydraulic Coefficient [PDF]
Journal of Hydraulic and Water Engineering, 2023 Stepped spillways discharge more flow through themselves than smooth spillways theoretically. Therefore, understanding the flow behavior of these spillways can lead to better and more efficient use. In addition, the use of vortex breaker.
R. Aghamajidi, M. Mansuri, M. Mansouri
doaj +1 more source
Numerical simulation of flow on circular crested stepped spillway
Applied Water Science, 2022 The spillways are one of the most important hydraulic structures used in river engineering, dam construction, irrigation, and drainage engineering projects. Recently, a new type of such spillways with a circular crest has been proposed.
A. Parsaie +4 more
semanticscholar +1 more source
Improving energy dissipation on stepped spillways using breakers
Ain Shams Engineering Journal, 2018 Stepped spillways have many applications in dam structures, and river engineering. Moreover, stilling basins can be constructed with lower costs as energy dissipation by adding appurtenances to these stilling basins.
Gamal M. Abdel Aal +3 more
doaj +1 more source
Study of Conveniency of Using Stepped Spillway in Roller Compacted Concrete Dams (RCCD) [PDF]
Engineering and Technology Journal, 2009 A suggested design of Bastora stepped spillway has been taken as a prototype to build a physical wooden model with scale of 1:20 (Lm/Lp). Experiments have been carried out on the model with slope of upward inclined steps of 420, 280, 140 and 00.
Karim K. EL- Jumaily +1 more
doaj +1 more source
Aeration characteristics for skimming flow along the pre-aerator stepped spillways
Shui kexue jinzhan, 2014 Pre-aerator stepped spillways,where the aerator is placed prior to the primary step in the stepped spillway,can form a cavity chamber at the bottom to produce enough aeration concentration to avoid the cavitation erosion.
LIU Shanjun +5 more
doaj +1 more source
RBRH, 2021 The operation of stepped spillways is limited by a range of discharges due to the risk of occurrence of the cavitation phenomenon and erosion on its steps.
Priscila dos Santos Priebe +6 more
doaj +1 more source