Waqar A. Khan, Rama Subba Reddy Gorla
The Journal of Mechanical Science and Technology, vol. 24, no. 9, pp.1919-1925, 2010

Abstract : The mixed convection of power-law fluids along a wedge in a porous medium is investigated numerically using an implicit finite difference method. Robin boundary condition is applied at the wedge surface. To explore the effects of mixed convection, both forced and free convection dominated regimes are considered separately. Non-similarity solutions are obtained for the variable heat transfer coefficient. Local dimensionless skin friction and Nusselt number are presented in tabular and graphical forms for the selected values of wedge and convective parameters. The wedge angle geometry parameter m, power index of pseudoplastic fluids n and mixed convection parameter ξ range from 0 to 1 in both regimes, whereas different values of convective parameter hc are considered for investigating the behavior of skin friction and heat transfer rates.

Keyword : Mixed convection; Power-law fluids; Wedge; Porous medium; Finite difference method; Robin boundary condition