Effect of different screen areas on the submerged hydraulic jump characteristics

The hydraulic jump is a natural phenomenon occurs in steep waterways and behind the heading up structures. The main benefit of the hydraulic jump is dissipating the excessive kinetic energy. Tools such as sill, baffle blocks… etc. are used to maximize the energy loss through the hydraulic jump. In t...

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Main Authors: Osama Saleh, Suzan Abdalla, Eman Elnikhely
Format: Article
Language:English
Published: Port Said University 2022-06-01
Series:Port Said Engineering Research Journal
Subjects:
Online Access:https://pserj.journals.ekb.eg/article_197963_45f8c46fbccc2452017129e0714c042c.pdf
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author Osama Saleh
Suzan Abdalla
Eman Elnikhely
author_facet Osama Saleh
Suzan Abdalla
Eman Elnikhely
author_sort Osama Saleh
collection DOAJ
description The hydraulic jump is a natural phenomenon occurs in steep waterways and behind the heading up structures. The main benefit of the hydraulic jump is dissipating the excessive kinetic energy. Tools such as sill, baffle blocks… etc. are used to maximize the energy loss through the hydraulic jump. In the present study, screens with a constant height and width are located downstream the gate at a constant relative distance and examined under the different conditions of submerged hydraulic jump. Screens with different relative holes area are tested to select the best screen relative area. Screen with relative holes area of 0.285 had a maximum energy loss and shortest length with a minimum tail water depth of the submerged hydraulic jump. The theoretical derived equation of the relative depth of the hydraulic jump had a higher asymmetric scatter with the experimental results around the line of equality; however an acceptable agreement was present when a correction factor was used.
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spelling doaj.art-f585981a2caf476abacc0dd57eba73582023-10-23T05:56:24ZengPort Said UniversityPort Said Engineering Research Journal1110-66032536-93772022-06-01262101710.21608/pserj.2021.77341.1113197963Effect of different screen areas on the submerged hydraulic jump characteristicsOsama Saleh0Suzan Abdalla1Eman Elnikhely2Water and Water Structure department, Faculty of Engineering, Zagazig UniversityWater and Water Structure department, Faculty of Engineering, Zagazig UniversityWater and Water Structure department, Faculty of Engineering, Zagazig UniversityThe hydraulic jump is a natural phenomenon occurs in steep waterways and behind the heading up structures. The main benefit of the hydraulic jump is dissipating the excessive kinetic energy. Tools such as sill, baffle blocks… etc. are used to maximize the energy loss through the hydraulic jump. In the present study, screens with a constant height and width are located downstream the gate at a constant relative distance and examined under the different conditions of submerged hydraulic jump. Screens with different relative holes area are tested to select the best screen relative area. Screen with relative holes area of 0.285 had a maximum energy loss and shortest length with a minimum tail water depth of the submerged hydraulic jump. The theoretical derived equation of the relative depth of the hydraulic jump had a higher asymmetric scatter with the experimental results around the line of equality; however an acceptable agreement was present when a correction factor was used.https://pserj.journals.ekb.eg/article_197963_45f8c46fbccc2452017129e0714c042c.pdfscreensubmerged hydraulic jumpenergy dissipationsudden expanding stilling basinsupercritical flow
spellingShingle Osama Saleh
Suzan Abdalla
Eman Elnikhely
Effect of different screen areas on the submerged hydraulic jump characteristics
Port Said Engineering Research Journal
screen
submerged hydraulic jump
energy dissipation
sudden expanding stilling basin
supercritical flow
title Effect of different screen areas on the submerged hydraulic jump characteristics
title_full Effect of different screen areas on the submerged hydraulic jump characteristics
title_fullStr Effect of different screen areas on the submerged hydraulic jump characteristics
title_full_unstemmed Effect of different screen areas on the submerged hydraulic jump characteristics
title_short Effect of different screen areas on the submerged hydraulic jump characteristics
title_sort effect of different screen areas on the submerged hydraulic jump characteristics
topic screen
submerged hydraulic jump
energy dissipation
sudden expanding stilling basin
supercritical flow
url https://pserj.journals.ekb.eg/article_197963_45f8c46fbccc2452017129e0714c042c.pdf
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AT emanelnikhely effectofdifferentscreenareasonthesubmergedhydraulicjumpcharacteristics