Results 11 to 20 of about 657 (163)
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 increase significantly the rate of energy dissipation taking place on the spillway face and reduce the size of the required downstream energy dissipation basin.
Chanson, Hubert
core +6 more sources
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
Stepped Spillway as an Energy Dissipater [PDF]
Canadian Water Resources Journal / Revue canadienne des ressources hydriques, 2016 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 ...
Jurdi, Bassam R., Chatila, Jean G.
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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.
Chanson, Hubert +3 more
core +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
RBRH, 2017 Stilling basins are structures built at the base of the spillway to dissipate energy, by means of a hydraulic jump. Hydraulic jump is a turbulent phenomenon that causes large pressure fluctuation in the stilling basin bottom, and can damage the sink ...
Carolina Kuhn Novakoski +5 more
doaj +2 more sources
Converging stepped spillway flow
Journal of Hydraulic Research, 2016 Wall deflection in supercritical flow induces standing waves which significantly influence the flow field close to the wall. This paper analyses the flow in the converging stepped spillway, using two scale-models with different step heights and ...
Zindović, Budo +3 more
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Step cavity and gabion aeration on a gabion stepped spillway [PDF]
Hydraulic structures and society - Engineering challenges and extremes, 2014 Recent advances in gabion construction techniques have increased the interest for gabion stepped spillways. The present study investigates the air entrainment process in the stepped cavity of a gabion stepped spillway through physical modelling.
Chanson, H. +3 more
core +4 more sources
Computational Fluid Dynamics Modeling of Flow over Stepped Spillway
Tikrit Journal of Engineering Sciences, 2017 In present paper, the computational fluid dynamics (CFD - program Flow-3D) was used toanalyze and study the characteristics of flow energy dissipation over stepped spillways. Threedifferent spillway heights ( ) (15, 20 and 25cm) were used.
Raad Hoobi Irzooki
doaj +1 more source