Effect of variable viscosity on mixed convection boundary layer flow over a vertical surface embedded in a porous medium
The steady mixed convection boundary layer flow over a vertical impermeable surface embedded in a porous medium when the viscosity of the fluid varies inversely as a linear function of the temperature is studied. Both cases of assisting and opposing flows are considered. The transformed boundary lay...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7667/1/Effect%20of%20variable%20viscosity%20on%20mixed%20convection%20boundary%20layer%20flow%20over%20a%20vertical%20surface%20embedded%20in%20a%20porous%20medium.pdf http://psasir.upm.edu.my/id/eprint/7667/ http://dx.doi.org/10.1016/j.icheatmasstransfer.2007.01.002 |
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| Summary: | The steady mixed convection boundary layer flow over a vertical impermeable surface embedded in a porous medium when the viscosity of the fluid varies inversely as a linear function of the temperature is studied. Both cases of assisting and opposing flows are considered. The transformed boundary layer equations are solved numerically by a finite difference method. Numerical results for the flow and heat transfer characteristics are obtained for various values of the mixed convection parameter ε and the variable viscosity parameter θe. It has been found that in the opposing flow case, dual solutions exist and boundary separation occurs.
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