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    Rights statement: This is the author’s version of a work that was accepted for publication in Alexandria Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Alexandria Engineering Journal, 55, 2, 2016 DOI: 10.1016/j.aej.2016.02.020

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Second law analysis for hydromagnetic couple stress fluid flow through a porous channel

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<mark>Journal publication date</mark>06/2016
<mark>Journal</mark>Alexandria Engineering Journal
Issue number2
Volume55
Number of pages7
Pages (from-to)925-931
Publication StatusPublished
Early online date5/03/16
<mark>Original language</mark>English

Abstract

In this work, the combined effects of magnetic field and ohmic heating on the entropy generation rate in the flow of couple stress fluid through a porous channel are investigated. The equations governing the fluid flow are formulated, non-dimensionalised and solved using a rapidly convergent semi-analytical Adomian decomposition method (ADM). The result of the computation shows a significant dependence of fluid’s thermophysical parameters on Joule’s dissipation as well as decline in the rate of change of fluid momentum due to the interplay between Lorentz and viscous forces. Moreover, the rate of entropy generation in the flow system drops as the magnitude of the magnetic field increases.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Alexandria Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Alexandria Engineering Journal, 55, 2, 2016 DOI: 10.1016/j.aej.2016.02.020