Results 11 to 20 of about 1,172 (264)

Analysis of Hydraulic Properties of Stepped Spillways with Alternating Steps [PDF]

open access: yesAdvances in Civil Engineering and Environmental Science
Stepped spillways are widely used in hydraulic engineering due to their ability to enhance energy dissipation and improve flow stability under high discharge conditions.
Sarkar Karim   +3 more
doaj   +2 more sources

Free-Surface Aeration in a Steep Stepped Spillway

open access: green, 2016
Self-aeration has important civil and environmental applications in stepped chutes, ranging from cavitation protection to enhanced air-water mass transfer. Air bubble entrainment occurs when the turbulent stresses in the boundary layer exceed the combined effects of surface tension and buoyancy.
G. Zhang
openalex   +5 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

Experimental Investigation of the Influence of Step Height on Energy Dissipation and Flow Characteristics in Stepped Spillways

open access: yesSulaimani Journal for Engineering Sciences, 2023
Stepped spillways have become increasingly popular due to their stability and ability to dissipate energy effectively. While previous studies have evaluated various aspects of stepped spillways, this paper specifically investigates the impact of step ...
Wazira Qadir 1   +2 more
doaj   +1 more source

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