Results 21 to 30 of about 740 (265)

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

THE SPILLWAYS OF BURRINJUCK DAM. [PDF]

open access: yesMinutes of the Proceedings of the Institution of Civil Engineers, 1922
n ...
openaire   +1 more source

GEOMETRY OPTIMIZATION OF TRIANGLE LABYRINTH SPILLWAY USING ANFIS MODELS AND GENETIC ALGORITHMS [PDF]

open access: yesمجله مدل سازی در مهندسی, 2009
Labyrinth spillways were considered as one of the appropriate options to pass PMF discharge where the system had difficulties. In a certain width in similar head these spillways with nonlinear crest can pass greater discharges compare to spillways with ...
مهدی Azhdary Moghaddam   +2 more
doaj   +1 more source

Location of inception point of alternating steps stepped spillways

open access: yesSulaimani 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 ...
Burhan S. Muhammed1   +1 more
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

Scour due to turbulent wall jets downstream of low-/high-head hydraulic structures

open access: yesCogent Engineering, 2016
To overcome over-prediction of the scour depths by existing methods, a mathematical model is developed based on a work transfer theory. This model predicts the equilibrium scour hole’s depth and length due to two-dimensional turbulent wall jets ...
Youssef I. Hafez
doaj   +1 more source

Computational investigation of hydraulic performance variation with geometry in gabion stepped spillways

open access: yesWater Science and Engineering, 2019
Over recent years, there has been a clear increase in the frequency of reported flooding events around the world. Gabion structures offer one means of flood mitigation in dam spillways.
Dominic E. Reeve   +2 more
doaj   +1 more source

Analysis of the longitudinal distribution of pressures near the ends of the vertical and horizontal faces in stepped spillway of slope 1V: 0.75H

open access: yesRBRH, 2018
Stepped spillways have been widely used for flood runoff due to of their constructive advantages and in regards to energy dissipation during the drop, allowing downstream dissipation structures to be designed in smaller dimensions.
Fabrício Machado Osmar   +5 more
doaj   +1 more source

A Study of pressure fluctuation caused by hydraulic jump in stilling basin [PDF]

open access: yesمهندسی منابع آب, 2018
A stilling basin is one of the energy dissipaters downstream of a spillway. The place of maximum pressure caused by jet impact and the effect of various factors on the amount and location of pressure are important factors in designing of stilling basin ...
mahsa otoufat shoar, zahra ghadampour
doaj  

Energy Loss in Skimming Flow over Cascade Spillways: Comparison of Artificial Intelligence-Based and Regression Methods

open access: yesApplied Sciences, 2020
In this study, the energy dissipation of cascade spillways was studied by conducting a series of laboratory experiments. Five spillways slope angles (α) (10°, 20°, 30°, 40°, and 50°), various step numbers (N) ranging from 4 to 75, and a wide range of ...
Meysam Nouri   +3 more
doaj   +1 more source

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