Results 11 to 20 of about 55,812 (258)
Stepped spillway flows and air entrainment [PDF]
Canadian Journal of Civil Engineering, 1993 Stepped spillways have become a popular method for handling flood releases. The steps significantly increase the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin. The compatibility of stepped spillways with roller compacted concrete and gabion construction techniques ...
Chanson, Hubert
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Stepped Spillway as an Energy Dissipater [PDF]
Canadian Water Resources Journal / Revue canadienne des ressources hydriques, 2004 This paper describes an experimental investigation into the hydraulics of ogee-profile stepped spillways, examines their viability as an alternative to smooth-back spillways and investigates their efficiency in reducing the downstream energy and length of the hydraulic jump.
Chatila, Jean G., Jurdi, Bassam R.
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Longitudinal distribution of extreme pressures in a hydraulic jump downstream of a stepped spillway
RBRH, 2017 The overflow system of a dam safely controls the water level of a reservoir. The design of these structures should predict the damage caused by the action of the turbulent flow to which they are subject to.
Carolina Kuhn Novakoski +4 more
doaj +3 more sources
Flow in the gradually converging stepped spillway [PDF]
, 2018 Степенасти брзотоци су популарна мера за дисипацију енергије преливене воде.Своју популарност дугују добрим дисипационим карактеристикама и нижом ценомизградње у односу на класичне брзотоке са глатним дном.
Zindović, Budo
core +11 more sources
Energy Dissipation down a Stepped Spillway with Nonuniform Step Heights [PDF]
Journal of Hydraulic Engineering, 2011 Although most stepped spillway–design guidelines were developed for uniform step heights, a nonuniform stepped design might be a practical alternative in some cases. A physical study was conducted in a moderate slope-stepped chute (1V:2H) and five stepped configurations were tested for 0.7 < dc / h < 1.9.
Felder, Stefan, Chanson, Hubert
openaire +5 more sources
Computational Fluid Dynamics Modeling of Flow over Stepped Spillway
Tikrit Journal of Engineering Sciences, 2016 In present paper, the computational fluid dynamics (CFD – program Flow-3D) was used to analyze and study the characteristics of flow energy dissipation over stepped spillways. Three different spillway heights (15, 20 and 25cm) were used. For each one of
Raad H. Irzooki +2 more
doaj +4 more sources
Stepped Spillway Hydraulic Model Investigation
Tikrit Journal of Engineering Sciences, 2006 An experimental hydraulic model investigation was conducted to evaluate the performance of a stepped overflow spillway . The spillway tested has a standard ogee profile with continuous steps cut into a straight portion of downstream face from tangential ...
Jaafar Sadeq Maatooq
doaj +2 more sources
Numerical investigation of alternating skimming flow over a stepped spillway
, 2021 This study aims to illustrate the influence of stepped spillway width on alternating skimming flow development. A computational fluid dynamics (CFD) model in Ansys Fluent® was established to simulate the flow over stepped spillways, using a volume of ...
Gafsi, Moustefa +4 more
core +1 more source
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
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