Discussion on the paper: Vortex Instability of Mixed Convection Boundary Layer Flow Adjacent to a Nonisothermal Horizontal Surface in a Porous Medium with Variable Permeability’
نویسندگان
چکیده
In this Discussion we shall reflect on various aspects of the recently published paper by Elaiw and Ibrahim (2008). Their paper considers the onset of convective instabilities of a mixed convection boundary layer induced by the combined presence of a hot horizontal surface in an unbounded porous medium and an externally-imposed uniform horizontal forced convective flow. These authors also adopt a power law variation in the surface temperature, and allow for the effects of nonuniform porosity caused by inefficient packing of the porous medium near to the horizontal surface. The primary aim of the present Discussion is to discuss the theoretical foundations of the analysis of Elaiw and Ibrahim (2008) in order to clarify them unambiguously.
منابع مشابه
Effect of Variable Viscosity on Vortex Instability of Non-Darcy Mixed Convection Boundary Layer Flow Adjacent to a Nonisothermal Horizontal Surface in a Porous Medium
1 Department of Mathematics, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia 2 Department of Mathematics, Faculty of Science, Al-Azhar University, Assiut 71511, Egypt 3 Department of Mathematics, Faculty of Science for Girls, King Khalid University, Abha, Saudi Arabia 4 Department of Mathematics, University Collage in Makkah, Umm-Alqura University, Saud...
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