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Journal of Porous Media
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i2.50
pages 175-187

A NOTE ON ENTROPY GENERATION IN MHD FLOW OVER A VERTICAL PLATE EMBEDDED IN A POROUS MEDIUM WITH ARBITRARY SHEAR STRESS AND RAMPED TEMPERATURE

Arshad Khan
Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia 81310, Skudai, Malaysia; Department of Computer Science/IT Sarhad University of Science & IT, Peshawar Khyber Pakhtunkhwa Pakistan
Ilyas Khan
Ton Duc Thang University
Farhad Ali
City University of Science and Information Technology, Peshawar
Sharidan Shafie
Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia 81310 UTM Johor Bahru, Johor, Malaysia

要約

This note provides an exact analysis of unsteady free convection flow of viscous fluid past a vertical plate with arbitrary shear stress and ramped wall temperature. The fluid is considered to be electrically conducting and passing through a porous medium. Equations governing the problem are first written in dimensionless form and then solved for the exact solutions using the Laplace transform method. The graphs of velocity, entropy generation, and Bejan number are plotted for various parameters of interest. It is found that velocity and entropy generation decrease with increasing wall shear stress in cases of both ramped and constant wall temperature. It is also observed that Bejan number increases with increasing wall shear stress.


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