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Journal of Porous Media
Fator do impacto: 1.49 FI de cinco anos: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v16.i8.50
pages 749-756

TIME-DEPENDENT FLOW IN A COMPOSITE CHANNEL WITH HEAT TRANSFER

Muhammad Nasir
Department of Mathematics, Quaid-i-Azam University, Islamabad 45320, Pakistan
Sufian Munawar
Department of Quantitative Methods, College Business Administration, University of Dammam, Dammam 31441, Saudi Arabia
Asif Ali
Department of Mathematics, Quaid-i-Azam University 45320, Islamabad 44000, Pakistan

RESUMO

In this article, unsteady oscillatory flow and heat transfer in a horizontal composite porous channel is discussed. The Darcy-Brinkman model is used to develop the governing equations for the flow in a porous medium. The upper plate is oscillating with the constant amplitude while the lower plate is stationary. The viscous and Darcian dissipation terms are included in the energy equation. At the interface of both regions the velocity, shear stress, and temperature profiles are assumed to be continuous. The governing equations for momentum and heat transfer are solved analytically using the series solution in terms of harmonic and nonharmonic functions in both regions of the channel. The effects of various physical parameters on the velocity and the temperature profiles are analyzed with the help of graphs and tables.


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