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95732

Numerical and Experimental Study of Water Hammer in Viscoelastic Pipes with and without Extended Partial Blockage.

Article

Last updated: 22 Jan 2023

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Tags

Mechanical Power Engineering

Abstract

In the present paper, the continuity and momentum equations were solved using the Method of Characteristics to simulate the water hammer phenomenon taking into account the effect of pipe wall viscoelasticity and unsteady friction of fluid flow. In order to study the effect of extended blockage existence in the pipeline, a MATLAB code was developed to deal with both cases: simple single pipeline and compound series pipes. Because of the vital role that boundary conditions play in the profile of the generated pressure wave, they were mentioned in this paper. Code developed was validated
with previous experimental data for the case of single pipe and for compound pipeline. In addition to that, a simple Reservoir-
Pipe-Valve test rig was constructed using PVC pipe. The experimental data extracted from the test rig were compared with the numerical results of the code for both simple and complex pipelines. The code could predict the pressure head fluctuations quite accurately in the case of simple pipe. However, in case of complex series pipeline, it could predict the maximum pressure head for the first two peaks, but a phase shift was noticed after the second peak and progressively increased with time. Finally, a sensitivity analysis was carried out to investigate the effect of changing some essential parameters on the pressure wave profile.

DOI

10.21608/bfemu.2020.95732

Keywords

Water Hammer, Method Of Characteristics, viscoelastic pipes, extended partial blockage

Authors

First Name

Ahmed

Last Name

Nile

MiddleName

Talaat

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El-Mansoura 35516, Egypt

Email

ahmed_nile@mans.edu.eg

City

-

Orcid

-

First Name

Berge

Last Name

Djebedjian

MiddleName

-

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El-Mansoura 35516, Egypt

Email

bergedje@mans.edu.eg

City

-

Orcid

-

First Name

Mohamed

Last Name

El-Naggar

MiddleName

Ahmed

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El-Mansoura 35516, Egypt

Email

naggarm@mans.edu.eg

City

-

Orcid

-

Volume

43

Article Issue

3

Related Issue

14274

Issue Date

2018-09-01

Receive Date

2018-06-27

Publish Date

2020-06-14

Page Start

1

Page End

13

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 43_Issue 3_Pages 1-13.pdf

PDF . 4.1MB

Link

https://bfemu.journals.ekb.eg/article_95732.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=95732

Order

5

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

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-

Details

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Article

Created At

22 Jan 2023