Mixed convection flow over a vertical wedge embedded in a highly porous medium |
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Authors: | M Kumari H S Takhar G Nath |
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Institution: | (1) Department of Mathematics Indian Institute of Science Bangalore – 560 012, India, IN;(2) Department of Engineering Manchester Metropolitan University Oxford Road, Manchester, M1 5GD, UK, GB |
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Abstract: | The steady mixed convection flow over a vertical wedge with a magnetic field embedded in a porous medium has been investigated.
The effects of the permeability of the medium, surface mass transfer and viscous dissipation on the flow and temperature fields
have been included in the analysis. The coupled nonlinear partial differential equations governing the flow field have been
solved numerically using the Keller box method. The skin friction and heat transfer are found to increase with the parameters
characterizing the permeability of the medium, buoyancy force, magnetic field and pressure gradient. However the effect of
the permeability and magnetic field on the heat transfer is very small. The heat transfer increases with the Prandtl number,
but the skin friction decreases. The buoyancy force which assists the forced convection flow causes an overshoot in the velocity
profiles. Both the skin friction and heat transfer increase with suction and the effect of injection is just the reverse.
Received on 21 May 1999 |
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