Results 91 to 100 of about 154 (122)

Optimisation of Stilling Basin for an Ogee Spillway for Enhanced Enery Dissipation

Spillways are meant for disposing of the excess flood safely to the downstream without causing any damage to its upstream, the structure itself and its downstream. Energy dissipator is essential component of spillway which dissipates the incoming excess energy. The most common energy dissipators are ski jump buckets, roller buckets, hydraulic jump type
V. V. Samet, Vankayalapati. S. Ramarao, V. S. Chavan, P. B. Nangare, A. T. Lokhande   +4 more
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Experimental and Numerical Investigation of Flow Over Ogee Spillway

Water Resources Management, 2020
Ogee type spillway is one of the most preferred sluice types due to its functional suitability and high safety factor. It is used for controlling the flow rates and water levels in reservoirs, such as lowering the water level in emergency situations, maintaining normal river functions and discharging excess water.
Alpaslan Yarar
exaly   +3 more sources

Computational modeling of flow over an ogee spillway

Computers and Structures, 2004
Abstract This paper presents an investigation into the hydraulics of regular ogee-profile spillways. The free-surfaces of the fluid for several flow heads as measured in the hydraulics laboratory are used as benchmarks. The finite element computational fluid dynamics software, ADINA, was used to predict the free surface over an ogee spillway and thus
M Tabbara
exaly   +3 more sources

Measurement and analysis of the drag coefficient of wood accumulations at an ogee crested spillway

Journal of Hydrology
Trunks, branches, and wooden pieces transported by rivers during flood events can reach dams and accumulate at spillways. The reduced flow velocity and the presence of sluice gates may increase the probability of wood accumulation and gate malfunctioning.
Elisabetta Persi, E Pibia, Gabriella Petaccia   +2 more
exaly   +2 more sources

The investigation of energy dissipation in ogee profile spillway model

Arabian Journal of Geosciences
Dnyaneshwar Vasant Wadkar, Manoj Pandurang Wagh   +1 more
exaly   +2 more sources

Effect of spillway-ogee location on flow uniformity and turbulence at the crest of an ogee weir

2023
This study investigated the effect of spillway-crest location relative to spillway entrance, and spillway-abutment shape, on uniformity of flow distribution and turbulence intensity of flow, over the ogee crest of a spillway. These issues are especially of concern for spillways for which the approach flow to the ogee weir is relatively shallow ...
Alsultan, Faisal Abdulaziz, Ettema, Robert, Thornton, Christopher, Conrad, Steve   +3 more
openaire   +1 more source

Transitional Flow at Low-Head Ogee Spillway

Journal of Hydraulic Engineering, 2018
AbstractLow-head gated spillways provide controlled flow releases for defense against floods and a reliable supply of water for beneficial uses.
Seung Ho Hong, Terry W. Sturm, Juan A. González-Castro   +2 more
openaire   +1 more source

Flow Characteristics on the Ogee Spillway

Journal of the Hydraulics Division, 1957
General formula is suggested for calculation of spillway energy loss, and theoretical derivation is presented defining limit between true hydraulic jump and drowned jump; criterion for estimating bottom velocities along level spillway apron is considered.
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Experimental and Numerical Modeling of the Gated and Ungated Ogee Spillway

2023
Spillways are hydraulic structures that allow dams to release and convey surplus water or flood from the reservoir to the downstream channel. The spillway is a safety structure that prevents the overtopping of the dam. Many dam failure disasters were due to the inadequate capacity of the spillway, which fully illustrates the prominence of spillway ...
openaire   +2 more sources

Investigating impact of converging training walls of the ogee spillways on hydraulic performance

Paddy and Water Environment, 2020
Due to their economical and structural aspects, ogee-crested spillways can be constructed and operated in a wide variety of situations. In this study, a three-dimensional physical model (1:50 scale) was planned and constructed to investigate the impact of converging training walls of the ogee spillways with a curve axis on flow characteristics such as ...
Kiyoumars Roushangar, Ali Foroudi Khowr, Mojtaba saniei, Farhad Alizadeh   +3 more
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