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ISSN Druckformat: 1091-028X
ISSN Online: 1934-0508
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SECOND LAW ANALYSIS FOR COMBINED CONVECTION IN NON-NEWTONIAN FLUIDS OVER A VERTICAL WEDGE EMBEDDED IN A POROUS MEDIUM
ABSTRAKT
The second law analysis for the combined convective heat transfer in a non-Newtonian boundary-layer flow over a wedge embedded in a porous medium is presented. Velocity and temperature fields are solved numerically under the similarity assumption. These results are used to compute the entropy generation number Ns, irreversibility ratio ø, and the Bejan number Be for a range of values of the viscosity index (n), streamwise distance (x), buoyancy parameter (λ), and viscous frictional parameter, G. The results show that the Bejan number increases with the viscosity index and the buoyancy parameter.
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