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141128

Performance of Control Structures in Channels Infested by Aquatic Weeds in Egypt.

Article

Last updated: 22 Jan 2023

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Subjects

-

Tags

Irrigation and Hydraulic Engineering

Abstract

The hydraulic structures play a very important role in controlling the channel discharge and the water levels, but the presence of the hydraulic structures in channels infested by aquatic weeds may cause significant problems for the performance of these structures. In Egypt more than 80% of the canals and the drains are heavily infested by all types of aquatic weeds. This infestation has started shortly after the construction of the High Aswan Dam. The most prevailing type of aquatic weeds is the submerged weeds. This type of weeds decreases the channels hydraulic efficiency as the low resistance increases. In the present study, the effect of submerged weeds density on the performance of vertical sluice gates was analyzed experimentally. The dimensional analysis was employed to derive an expression for the discharge coefficient and an equation for predicting the energy losses on the gates are developed. The experimental modeling was developed for a double vent regulator model with vertical sluice gates constructed in a trapezoidal flume and the branched flexible roughness were used to simulate the submerged weeds. The extensive laboratory measurements concentrated mainly on the discharge coefficient, the energy losses, the variation in the water surface profile, the velocity distribution and the variation in the equivalent roughness coefficient. 

DOI

10.21608/bfemu.2021.141128

Keywords

Experimental modeling, Dimensional analysis, Vertical sluice gales, Submerged weeds, Branched flexible roughness, Discharge coefficient. Energy loss

Authors

First Name

Tarek

Last Name

El-Samman

MiddleName

A.

Affiliation

General Director of National Water Research Center., Cairo., Egypt.

Email

-

City

Cairo

Orcid

-

First Name

Bakenaz

Last Name

Zeydan

MiddleName

A.

Affiliation

Water Engineering Department., Faculty of Engineering., Tanta University., Tanta., Egypt

Email

-

City

Tanta

Orcid

-

First Name

Tamer

Last Name

Gado

MiddleName

A.

Affiliation

Water Engineering Department., Faculty of Engineering., Tanta University., Tanta., Egypt.

Email

-

City

Tanta

Orcid

-

Volume

28

Article Issue

2

Related Issue

20836

Issue Date

2003-06-01

Receive Date

2003-02-11

Publish Date

2021-01-19

Page Start

1

Page End

25

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 28_Issue 2_Pages 1-25.pdf

PDF . 490.6kB

Link

https://bfemu.journals.ekb.eg/article_141128.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=141128

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