Entropy generation in laminar fluid flow through a circular pipe

Ahmet Z. Sahin; Rached Ben-Mansour

doi:10.3390/e5050404

Entropy generation in laminar fluid flow through a circular pipe

Ahmet Z. Sahin^*, Rached Ben-Mansour

^*Corresponding author for this work

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

49 Scopus citations

Abstract

A numerical solution to the entropy generation in a circular pipe is made. Radial and axial variations are considered. Navier-Stokes equations in cylindrical coordinates are used to solve the velocity and temperature fields. Uniform wall heat flux is considered as the thermal boundary condition. The distribution of the entropy generation rate is investigated throughout the volume of the fluid as it flows through the pipe. Engine oil is selected as the working fluid. In addition, water and Freon are used in a parametric study. The total entropy generation rate is calculated by integration over the various cross-sections as well as over the entire volume.

Original language	English
Pages (from-to)	404-416
Number of pages	13
Journal	Entropy
Volume	5
Issue number	5 SPEC.
DOIs	https://doi.org/10.3390/e5050404
State	Published - Dec 2003

Keywords

Entropy
Generation
Heating
Numerical
Pipe
Two-dimensional

ASJC Scopus subject areas

General Physics and Astronomy

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10.3390/e5050404

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author = "Sahin, {Ahmet Z.} and Rached Ben-Mansour",

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AB - A numerical solution to the entropy generation in a circular pipe is made. Radial and axial variations are considered. Navier-Stokes equations in cylindrical coordinates are used to solve the velocity and temperature fields. Uniform wall heat flux is considered as the thermal boundary condition. The distribution of the entropy generation rate is investigated throughout the volume of the fluid as it flows through the pipe. Engine oil is selected as the working fluid. In addition, water and Freon are used in a parametric study. The total entropy generation rate is calculated by integration over the various cross-sections as well as over the entire volume.

KW - Entropy

KW - Generation

KW - Heating

KW - Numerical

KW - Pipe

KW - Two-dimensional

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JO - Entropy

JF - Entropy

IS - 5 SPEC.

ER -

Entropy generation in laminar fluid flow through a circular pipe

Abstract

Keywords

ASJC Scopus subject areas

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