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Numerical Modeling of Flow Characteristics for A Reach Reach from Damietta Branch Using K-ε Turbulence Model.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Irrigation and Hydraulic Engineering

Abstract

In this research, a meandering reach from Damietta branch was selected and numerically studied. The aim of this study is to find the vulnerable zones subjected to maximum velocities so as to assign the appropriate methodology of training structures for improving and stabilizing flow conditions. This reach is approximately 6.78 km long, which located between km 95.22 and km 102 downstream of El- Roda gauge station. Field data were collected and analyzed for the modeling process. A 3-D model called IRIC (International River Interface Corporative) based on an explicit finite difference method (Abbott-Ionescu scheme) was applied. Therefore, in order to fulfill such objective, K-ɛ turbulence model was employed using upwind scheme of the advection terms.
Through the modeling process, it was assumed that the sediment particles move in the bed layer zone only and the direction of sediment transport is the same as direction of flow. The effect of vegetation and interactions between sediment motion and vegetation were added in the modeling process. This model treats vegetation drag effects explicitly through drag terms in the equations of motion. From this study, it was found that the vorticity values through the upstream curve are greater than the corresponding ones in the downstream curve;
consequently, the upstream curve is subjected to high water velocity values which may increase the scouring process.

DOI

10.21608/bfemu.2022.222298

Keywords

Numerical Modeling, turbulence model, Sediment, Vegetation, K-ε model

Authors

First Name

A. A.

Last Name

Zidan

MiddleName

-

Affiliation

Professor of Hydraulics, Irrigation and Hydraulics Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

K.

Last Name

S. El-Alfy

MiddleName

-

Affiliation

Professor of Hydraulics, Irrigation and Hydraulics Engineering Department, Faculty of Engineering, Mansoura University, Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

M.

Last Name

G. Abdalla

MiddleName

-

Affiliation

Associate Professor, Irrigation and Hydraulics Engineering Department, Faculty of Engineering, Mansoura University, Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

M.

Last Name

I. El-Gamal

MiddleName

-

Affiliation

Assistant Lecturer, Irrigation and Hydraulics Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

38

Article Issue

4

Related Issue

15577

Issue Date

2013-12-01

Receive Date

2013-10-10

Publish Date

2022-02-28

Page Start

68

Page End

89

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 38_Issue 4_Pages 68-89.pdf

PDF . 1.6MB

Link

https://bfemu.journals.ekb.eg/article_222298.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=222298

Order

12

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

Numerical Modeling of Flow Characteristics for A Reach Reach from Damietta Branch Using K-ε Turbulence Model.

Details

Type

Article

Created At

22 Jan 2023