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A New Exact-Analytical Solution for Convective Heat Transfer of Nanofluids Flow in Isothermal Pipes

Published online by Cambridge University Press:  15 November 2017

P. Akbarzadeh
P. Akbarzadeh*
Affiliation:
School of Mechanical Engineering Shahrood University of Technology Shahrood, Iran
*
*Corresponding author (akbarzad@ut.ac.ir; p.akbarzadeh@shahroodut.ac.ir)
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Abstract

This study presents a new exact-analytical solution for convective heat transfer of thermally fully-developed laminar nanofluid flows in a circular tube for the first time. In this problem, the pipe wall is exposed to a constant temperature. The solution is based on the Whittaker function and perturbation technique. In the nanofluid model, it is assumed that nanoparticles and base-fluid behave as a single-phase with average properties. In this study, the effects of Reynolds number, volume fraction of the particles, Peclet number, and particle diameter are investigated on the average heat transfer coefficient, surface mass transfer, and Nusselt number.

Keywords

Exact-analytical solutionWhittaker functionNusselt numbersIsothermal pipes
Type
Research Article
Information
Journal of Mechanics , Volume 35 , Issue 2 , April 2019 , pp. 233 - 242
Copyright
© The Society of Theoretical and Applied Mechanics 2017 

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