Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes

A numerical model for determining the turbulent characteristics of fluid flow and heat transfer is presented, treating certain constants in the van Driest eddy diffusivity equation of momentum and heat as variables. The viscosity and thermal conductivity of nanofluids are estimated using regression...

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Main Authors:	K. V., Sharma, Azmi, W. H., Kamal, Subhash, Sarma, P. K., Vijayalakshmi, Bathula
Format:	Article
Language:	English English
Published:	John Wiley & Sons 2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/1/Sharma%20et%20al.%202016%20CJCE.pdf http://umpir.ump.edu.my/id/eprint/12610/7/Theoretical%20Analysis%20of%20Heat%20Transfer%20and%20Friction%20Factor%20for%20Turbulent%20Flow%20of%20Nanofluids%20through%20Pipes.pdf

id	ump-12610
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spelling	ump-126102017-09-12T06:42:24Z http://umpir.ump.edu.my/id/eprint/12610/ Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes K. V., Sharma Azmi, W. H. Kamal, Subhash Sarma, P. K. Vijayalakshmi, Bathula TJ Mechanical engineering and machinery A numerical model for determining the turbulent characteristics of fluid flow and heat transfer is presented, treating certain constants in the van Driest eddy diffusivity equation of momentum and heat as variables. The viscosity and thermal conductivity of nanofluids are estimated using regression equations. It was observed that the turbulent characteristics of nanofluids are different from those of water. The numerical results indicate a higher velocity of SiO2 nanofluid and lower eddy diffusivity compared to Cu under similar operating conditions. The nanofluid temperature gradient increases with concentration and decreases with temperature. However, the temperature gradient is significantly influenced by the particle density. Equations for estimating the coefficient and the Prandtl index in the eddy diffusivity equations of momentum and heat, respectively, are developed as a function of Reynolds number, concentration, and nanofluid properties. The Prandtl index value decreases with increasing concentration, reflecting the reduction in heat transfer coefficients observed at lower operating temperatures. John Wiley & Sons 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12610/1/Sharma%20et%20al.%202016%20CJCE.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/12610/7/Theoretical%20Analysis%20of%20Heat%20Transfer%20and%20Friction%20Factor%20for%20Turbulent%20Flow%20of%20Nanofluids%20through%20Pipes.pdf K. V., Sharma and Azmi, W. H. and Kamal, Subhash and Sarma, P. K. and Vijayalakshmi, Bathula (2016) Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes. The Canadian Journal of Chemical Engineering, 94 (3). pp. 565-575. ISSN 1939-019X http://dx.doi.org/10.1002/cjce.22417 DOI 10.1002/cjce.22417
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery K. V., Sharma Azmi, W. H. Kamal, Subhash Sarma, P. K. Vijayalakshmi, Bathula Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
description	A numerical model for determining the turbulent characteristics of fluid flow and heat transfer is presented, treating certain constants in the van Driest eddy diffusivity equation of momentum and heat as variables. The viscosity and thermal conductivity of nanofluids are estimated using regression equations. It was observed that the turbulent characteristics of nanofluids are different from those of water. The numerical results indicate a higher velocity of SiO2 nanofluid and lower eddy diffusivity compared to Cu under similar operating conditions. The nanofluid temperature gradient increases with concentration and decreases with temperature. However, the temperature gradient is significantly influenced by the particle density. Equations for estimating the coefficient and the Prandtl index in the eddy diffusivity equations of momentum and heat, respectively, are developed as a function of Reynolds number, concentration, and nanofluid properties. The Prandtl index value decreases with increasing concentration, reflecting the reduction in heat transfer coefficients observed at lower operating temperatures.
format	Article
author	K. V., Sharma Azmi, W. H. Kamal, Subhash Sarma, P. K. Vijayalakshmi, Bathula
author_facet	K. V., Sharma Azmi, W. H. Kamal, Subhash Sarma, P. K. Vijayalakshmi, Bathula
author_sort	K. V., Sharma
title	Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
title_short	Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
title_full	Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
title_fullStr	Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
title_full_unstemmed	Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes
title_sort	theoretical analysis of heat transfer and friction factor for turbulent flow of nanofluids through pipes
publisher	John Wiley & Sons
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/ http://umpir.ump.edu.my/id/eprint/12610/1/Sharma%20et%20al.%202016%20CJCE.pdf http://umpir.ump.edu.my/id/eprint/12610/7/Theoretical%20Analysis%20of%20Heat%20Transfer%20and%20Friction%20Factor%20for%20Turbulent%20Flow%20of%20Nanofluids%20through%20Pipes.pdf
first_indexed	2023-09-18T22:14:25Z
last_indexed	2023-09-18T22:14:25Z
_version_	1777415241341075456

Theoretical Analysis of Heat Transfer and Friction Factor for Turbulent Flow of Nanofluids through Pipes

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