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141489

An Experimental Study of Drag Reduction of Polymer Solutions in Capillary Tubes.

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Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

This paper introduces the concept of the modified drag reduction envelope for flow of polymer solutions in capillary tubes. An experimental work studied drag reduction of polymer solutions in capillary tubes with diameters of 0.45, 0.55 and 0.75 mm. The experimental study were carried out under constant head for Reynolds number range between 103 and 104. The polymer used in the test was polyacrylamide. Four concentrations, 10, 50, 100 and 250 ppm were investigated. 
The experimental results showed that the friction drag reduction differs significantly among different diameters of capillary tubes at various concentration of polymer solutions. The results of the present work showed also that, for pure water flow, the friction factor values are lower than the conventional tubes because the flow in capillary tubes exhibits the rarefied phenomena due to the extremely small dimension of flow passages. Friction factor of polymer solution decreases with the increase of Reynolds number, tube diameter and solution concentration. Drag reduction ratio increases with solution concentration and the decrease of tube diameter.

DOI

10.21608/bfemu.2021.141489

Keywords

Drag reduction, polymer, Capillary tubes

Authors

First Name

L.

Last Name

Rabie

MiddleName

H.

Affiliation

Industry Education., Department., El-Mansoura University., New Damiętta., Egypt

Email

-

City

New Damiętta

Orcid

-

First Name

Y.

Last Name

AbdelGhaffar

MiddleName

E.

Affiliation

Mechanical Power Engineering Department.,El- Mansoura University Mansoura, Egypt

Email

-

City

-

Orcid

-

Volume

28

Article Issue

3

Related Issue

20837

Issue Date

2003-09-01

Receive Date

2003-07-20

Publish Date

2021-01-20

Page Start

11

Page End

22

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 28_Issue 3_Pages 11-22.pdf

PDF . 219.2kB

Link

https://bfemu.journals.ekb.eg/article_141489.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=141489

Order

9

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

An Experimental Study of Drag Reduction of Polymer Solutions in Capillary Tubes.

Details

Type

Article

Created At

22 Jan 2023