A generalized relationship for swirl decay in laminar pipe flow

T. F. Ayinde

doi:10.1007/s12046-010-0018-9

A generalized relationship for swirl decay in laminar pipe flow

T. F. Ayinde

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Swirling flow is of great importance in heat and mass transfer enhancements and in flow measurements. In this study, laminar swirling flow in a straight pipe was considered. Steady three-dimensional axisymmetric Navier-Stokes equations were solved numerically using a control volume approach. The swirl number distribution along the pipe length was computed. It was found that the swirl number at any location along the pipe length depends on the swirl number at inlet, the flow Reynolds number, the distance from the pipe inlet, the pipe diameter and the nature of the inlet swirl. A generalized relationship for swirl decay as a function of these parameters was then obtained by curve-fitting technique.

Original language	English
Pages (from-to)	129-137
Number of pages	9
Journal	Sadhana - Academy Proceedings in Engineering Sciences
Volume	35
Issue number	2
DOIs	https://doi.org/10.1007/s12046-010-0018-9
State	Published - 2010

Bibliographical note

Funding Information:
The support provided by the King Fahd University of Petroleum and Minerals in completing this work is acknowledged. The author is indebted to Prof. B S Yilbas for his encouragement and guidance throughout the work.

Keywords

Axisymmetric
Forced vortex
Free vortex
Laminar pipe flow
Swirl number

ASJC Scopus subject areas

General

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10.1007/s12046-010-0018-9

Cite this

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title = "A generalized relationship for swirl decay in laminar pipe flow",

abstract = "Swirling flow is of great importance in heat and mass transfer enhancements and in flow measurements. In this study, laminar swirling flow in a straight pipe was considered. Steady three-dimensional axisymmetric Navier-Stokes equations were solved numerically using a control volume approach. The swirl number distribution along the pipe length was computed. It was found that the swirl number at any location along the pipe length depends on the swirl number at inlet, the flow Reynolds number, the distance from the pipe inlet, the pipe diameter and the nature of the inlet swirl. A generalized relationship for swirl decay as a function of these parameters was then obtained by curve-fitting technique.",

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AU - Ayinde, T. F.

N1 - Funding Information: The support provided by the King Fahd University of Petroleum and Minerals in completing this work is acknowledged. The author is indebted to Prof. B S Yilbas for his encouragement and guidance throughout the work.

PY - 2010

Y1 - 2010

N2 - Swirling flow is of great importance in heat and mass transfer enhancements and in flow measurements. In this study, laminar swirling flow in a straight pipe was considered. Steady three-dimensional axisymmetric Navier-Stokes equations were solved numerically using a control volume approach. The swirl number distribution along the pipe length was computed. It was found that the swirl number at any location along the pipe length depends on the swirl number at inlet, the flow Reynolds number, the distance from the pipe inlet, the pipe diameter and the nature of the inlet swirl. A generalized relationship for swirl decay as a function of these parameters was then obtained by curve-fitting technique.

AB - Swirling flow is of great importance in heat and mass transfer enhancements and in flow measurements. In this study, laminar swirling flow in a straight pipe was considered. Steady three-dimensional axisymmetric Navier-Stokes equations were solved numerically using a control volume approach. The swirl number distribution along the pipe length was computed. It was found that the swirl number at any location along the pipe length depends on the swirl number at inlet, the flow Reynolds number, the distance from the pipe inlet, the pipe diameter and the nature of the inlet swirl. A generalized relationship for swirl decay as a function of these parameters was then obtained by curve-fitting technique.

KW - Axisymmetric

KW - Forced vortex

KW - Free vortex

KW - Laminar pipe flow

KW - Swirl number

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SP - 129

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JO - Sadhana - Academy Proceedings in Engineering Sciences

JF - Sadhana - Academy Proceedings in Engineering Sciences

IS - 2

ER -

A generalized relationship for swirl decay in laminar pipe flow

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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