Results 1 to 10 of about 103 (67)

Analysis of Energy Dissipation of Interval-Pooled Stepped Spillways. [PDF]

open access: yesEntropy (Basel), 2022
The water flow characteristics over an interval-pooled stepped spillway are investigated by combining the renormalization group (RNG) k-ε turbulence model with the volume of fluid (VOF) interface capture technique in the present study.
Ma X, Zhang J, Hu Y.
europepmc   +2 more sources

Hydraulic performance of a pre-aerated stilling basin: Experimental study. [PDF]

open access: yesPLoS One
Spillway chutes are critical in dam flood control, particularly in high dams where high water heads and large discharge in narrow canyons amplify the demand for safe discharging. For large unit discharges in spillways, aeration protection is essential to
Zhou Y   +6 more
europepmc   +2 more sources

Evaluation of advanced AI models for accurate prediction and uncertainty analysis of aeration inception in hydrofoil-crested stepped spillways. [PDF]

open access: yesSci Rep
Accurate prediction of the aeration inception point (L i ) in hydrofoil-crested stepped spillways (HSSs) is crucial for preventing cavitation damage and ensuring safe energy dissipation and flow regulation.
Nejatipour P   +6 more
europepmc   +2 more sources

Hydraulics of flow in gabion stepped spillways, an experimental study [PDF]

open access: yesJournal of Hydraulic Structures, 2023
In this study, the effect of different hydraulic parameters on the energy loss of flow over gabion stepped spillways are examined using physical models and comparisons are made with the other studies.
Farzin Salmasi, Sina Razi, John Abraham
doaj   +1 more source

Numerical investigation of simultaneous effect of end sills and roughness on flow characteristics in V-shaped stepped spillways [PDF]

open access: yesJournal of Hydraulic Structures, 2021
The special configuration of V- shape stepped spillways increases energy dissipation and aeration compared to the smooth spillways due to the creation of many vortices near the steps. In this research, the energy dissipation in different types of stepped
Mahla Alizadeh   +2 more
doaj   +1 more source

The effect of triangular prismatic elements on the hydraulic performance of stepped spillways in the skimming flow regime: an experimental study and numerical modeling

open access: yesJournal of Hydroinformatics, 2022
The stepped spillway is a cost-effective hydraulic structure to dissipate the energy of large water flow over the spillway of a dam. In this study, the focus was placed on the effects of triangular prismatic elements (TPEs) on the hydraulic performance ...
Kiyoumars Roushangar   +2 more
doaj   +1 more source

Application of machine learning approaches in the computation of energy dissipation over rectangular stepped spillway

open access: yesH2Open Journal, 2023
The stepped spillway of a dam is a crucial element that serves multiple purposes in the field of river engineering. Research related to flood control necessitates an investigation into the dissipation of energy over stepped spillways.
Saurabh Pujari   +4 more
doaj   +1 more source

Study Effect of Fluctuations of Pressure Factors of Stepped Short-throat Shaft Spillways on Hydraulic Coefficient [PDF]

open access: yesJournal 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

Experimental method to predict scour characteristics downstream of stepped spillway equipped with V-Notch end sill

open access: yesAlexandria Engineering Journal, 2021
To protect the dam body and downstream area, spillways should be built. Because the difference in water level upstream and downstream spillways is usually very big, energy dissipation facilities should be introduced.
Mohamed El-Sayed El-Mahdy
doaj   +1 more source

Evaluation of Energy Dissipation and Hydraulic Characteristics of Flow on Simple and Inclined Stepped Spillways using FLUENT Model [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
Stepped spillways are hydraulic structures which due to the high energy loss of flow have important role in reducing dimensions of stilling basin of downstream of the dams and consequently their economical design.
Elham Fazeli, Mohammad Mehdi Heidari
doaj   +1 more source

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