Effects of viscous dissipation and heat generation (absorption) in a thermal boundary layer of a non-Newtonian fluid over a continuously moving permeable flat plate |
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Authors: | M A A Mahmoud A M Megahed |
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Institution: | (1) Department of Mathematics, Faculty of Science, Helwan University, P.O. Box 11795, Cairo, Egypt |
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Abstract: | The problem of boundary-layer flow and heat transfer of a non-Newtonian power-law fluid over a moving porous infinite flat
plate in the presence of viscous dissipation and heat generation or absorption is investigated analytically. It is assumed
that both the momentum and the energy equations are coupled by the stress friction factor, and an assumption is introduced
regarding the heat-transfer index. It is found that exact analytical solutions for velocity and temperature exist only for
pseudoplastic fluids in the presence of suction at the surface. The effects of the suction parameter, Eckert number, and the
heat generation or absorption parameter on the velocity and temperature profiles, as well as on the skin-friction coefficient
and Nusselt number are discussed. |
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Keywords: | |
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