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Influence of Viscous Dissipation and Radiation on Unsteady MHD Mixed Convection Flow of Micropolar Fluids |
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PP: 143-162 |
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Author(s) |
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F. S. Ibrahim,
A. M. Elaiw,
A. A. Bakr,
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Abstract |
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| In this study, we investigate the influence of viscous dissipation and radiation on the
problem of unsteady MHD mixed convection two-dimensional laminar flow of an incompressible
electrically conducting micropolar fluid past a semi-infinite vertical moving
porous plate embedded in a porous medium. By taking the radiative heat flux in the
differential form and imposing an oscillatory time-dependent perturbation, the coupled
nonlinear equations are solved for the temperature and velocity distributions. The effects
of the material parameters on the temperature and velocity profiles are discussed
quantitatively. Especially, the effects of non-zero values of micro-gyration vector on
the velocity, angular velocity and temperature fields across the boundary layer are studied.
Numerical evaluation of the analytical results is performed and some graphical
results for the velocity, angular velocity and temperature profiles within the boundary
layer have been illustrated. |
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