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246315

Effect of Hollow Semi-Circular Baffles Arrangement on Local Scour Downstream Hydraulic Structures

Article

Last updated: 22 Jan 2023

OverviewSimilar Items

Subjects

-

Tags

Irrigation and Hydraulic Engineering

Abstract

The purpose of this research is to examine the effect of using hollow semi-circular baffles, on scour hole dimensions downstream hydraulic heading-up structures. Different flow conditions and various geometrical parameters are considered.  Fifty-four experiments are carried out under live bed scour conditions. The experiments consist of six sets, each one forced to the same flow conditions, but represents a different suggested geometrical arrangement of the baffles. Results showed that the best position of the baffle is located at the first one- third of the floor length with relative diameter equals to 0.74 to the initial water depth (gate opening). This position causes reduction equal to about 50% for the maximum depth of scour, with respective to the case of flat floor (no baffles). While the extended length of the scour is reduced to about 31%. On the other hand, the second baffles position, at the two-thirds of the floor length reduces only the relative scour length to about 57%.  Based on the experimental results, empirical dimensionless relationships are developed for both maximum scour length and depth

DOI

10.21608/bfemu.2022.246315

Keywords

Circular Baffles, Local Scour, Hydraulic structures, experimental work

Authors

First Name

Rania

Last Name

Rashed

MiddleName

Esmail

Affiliation

Graduate Student, Irrigation and Hydraulics Engineering Dept. Mansoura University, Mansoura 35516, Egypt

Email

raniarashed452@yahoo.com

City

manspura

Orcid

-

First Name

Adel

Last Name

El-Masry

MiddleName

Abdou

Affiliation

Prof. of, Irrigation and Hydraulics Engineering Dept., Mansoura University, Mansoura 35516, Egypt

Email

admasry@mans.edu.eg

City

Mansoura

Orcid

0000-0002-8315-3728

First Name

Hossam

Last Name

AbdelGawad

MiddleName

AbdelAziz Ahmed

Affiliation

Associate Prof. of Irrigation and Hydraulics Engineering Dept., Mansoura University, Mansoura 35516, Egypt

Email

hossamaaa@mans.edu.eg

City

Mansoura, Egypt

Orcid

0000-0002-3425-6018

Volume

47

Article Issue

3

Related Issue

34982

Issue Date

2022-06-01

Receive Date

2022-03-24

Publish Date

2022-06-27

Page Start

22

Page End

31

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 47_Issue 3_Pages 22-31.pdf

PDF . 2.1MB

Link

https://bfemu.journals.ekb.eg/article_246315.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=246315

Order

2

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023