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71201

FLOW OF DRAG REDUCING FLUIDS THROUGH A SUDDEN ENLARGEMENT

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Last updated: 25 Dec 2024

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Abstract

Theoretical and experimental studies, of drag reducing dilute polymer solution flow
through a sudden enlargement, are carried out. A turbulence model, which has been
early used for predicting Newtonian flows with adverse pressure gradient (APG), is
developed in the present analysis. The developed model well predicts the fully
developed drag reduction flow in pipes, i.e. flow under favorite pressure gradient
(FPG) conditions besides the sudden enlargement (APG) flow. Predictions, of the
mean flow properties and turbulence characteristics of drag reduction turbulent flows
in a sudden enlargement -i.e. under (APG)- are obtained and discussed. An
experimental setup is established for studying the pressure characteristics of the flow
through a (2:1) diameter ratio sudden enlargement test section. The working fluids are
dilute solutions of Polyethylene Glycol (PEG) polymer in tap water. Comparison
between theoretical and experimental pressure distribution results shows a reasonable
agreement. It is concluded that the developed turbulence model can be used to predict
drag reducing polymer flows under both (FPG) and (APG) conditions.

DOI

10.21608/erjm.2000.71201

Authors

First Name

M.H.

Last Name

Embaby

MiddleName

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Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Minufiya University, Egypt.

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Orcid

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First Name

M.A.

Last Name

El-Kady

MiddleName

-

Affiliation

Mechanical Power Engineering Department, Faculty of Engineering, Minufiya University, Egypt.

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Volume

23

Article Issue

1

Related Issue

10845

Issue Date

2000-01-01

Receive Date

2020-02-15

Publish Date

2000-01-01

Page Start

145

Page End

163

Print ISSN

1110-1180

Online ISSN

3009-6944

Link

https://erjm.journals.ekb.eg/article_71201.html

Detail API

https://erjm.journals.ekb.eg/service?article_code=71201

Order

8

Type

Original Article

Type Code

1,118

Publication Type

Journal

Publication Title

ERJ. Engineering Research Journal

Publication Link

https://erjm.journals.ekb.eg/

MainTitle

FLOW OF DRAG REDUCING FLUIDS THROUGH A SUDDEN ENLARGEMENT

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Article

Created At

22 Jan 2023