Results 51 to 60 of about 657 (163)
工程科学与技术, 2010 :The hydraulic characteristics of smooth spillway, stepped spillway and pre-aerator stepped spillway were studied. The experimental investigations showed that the pre-aerator equipment can not only keep the stepped spillway’s large energy dissipation ...
Chen Jian-Gang +2 more
doaj
Physical modeling of a stepped spillway without sidewalls
, 2020 The interest of a consulting company in designing stepped spillways in roller compacted concrete (RCC) dams led us to propose the possibility of building this type of spillway without sidewalls.
Dolz, Jose +3 more
core
Comparison of stepped and smooth spillway effects on stream reaeration
, 2021 The oxygen transfer at a hydraulic structure happens by self-aeration through the spillway and by flow aeration in the hydraulic jump downstream of the hydraulic structure.
Aras, Egemen, Berkun, Mehmet
core
Prediction of air concentration in stepped spillways using data-oriented methods [PDF]
محیط زیست و مهندسی آبThe high flow velocity and the pressure reduction in the spillways cause damage to the spillways. In the present research, the application of Gaussian Process Regression (GPR) and Support Vector Machine (SVM) was investigated for predicting air ...
Kiyoumars Roushangar +3 more
doaj +1 more source
Location of inception point of alternating steps stepped spillways
Sulaimani Journal for Engineering Sciences, 2023 This study explored the effects of flat-stepped spillways having alternating steps on the inception point location. Two wooden stepped spillways with a longitudinal slope of 26.6° were constructed in a rectangular flume and tested at various discharges, ranging from 0.003 to 0.05 m3/s.
Burhan S. Muhammed1 +1 more
openaire +2 more sources
Investigation of hydraulic characteristics down stream of Gabion dams [PDF]
The Egyptian International Journal of Engineering Sciences and TechnologyGabions are water structures that consist of metal mesh boxes contain rocks. This makes gabions very economic and simple. Those structures are widely used in small head works to dissipate the potential energy, and decrease scour.
Eman Elghandour +3 more
doaj +1 more source
Pressures on a stepped spillway
, 2020 This paper presents an analysis of the pressure field on the steps of a stepped spillway on an RCC dam. The fundamental component of this study is a series of pressure measurements obtained in the fully-developed zone of skimming flow regime along a ...
Dolz, Jose, Juny, Martí, Bladé, Ernest
core
Energy Dissipation on Stepped Spillways [PDF]
Journal of Hydraulic Engineering, 1995 The author provided interesting data on stepped spillway flows. The writer would like to add some information on flow resistance of skimming flows and discuss the energy dissipation on stepped chutes. It will be shown that the author's results are not dissimilar with results previously obtained by other researchers.
openaire +3 more sources
Predicting the Flow Velocity at the Toe of a Labyrinth Stepped Spillway
, 2021 The velocity at the toe of a spillway is a major variable when designing a stilling basin. Reducing this velocity leads to reduce the size of the basin as well as the required appurtenances which needs for dissipating the surplus kinetic energy of the ...
Maatooq, Jaafar S.
core +1 more source
A Laboratory Study Attempt of Flow and Energy Dissipation in Stepped Spillways
Journal of Engineering, 2016 A new laboratory study conducted on stepped spillways in order to investigate their efficiency of dissipating flow energy. All previous study on stepped spillway indicated that the flow energy dissipation decreased as increasing in discharge.
Thulfikar Razzak Abdul-Mehdi, Dr +2 more
doaj