Effect of Viscous Dissipation on Mixed Convection in a Nanofluid Saturated Non-Darcy Porous Medium Under Convective Boundary Condition

In this investigation, the influence of the prominent viscous dissipation effect on mixed convection transfer along a vertical plate embedded in a non-Darcy porous medium saturated with a nanofluid under convective boundary condition is studied. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The nonlinear governing equations and their associated boundary conditions are initially cast into a dimensionless form of non-similarity variables. The resulting system of equations is then solved numerically by an accurate implicit finite-difference method. The effect of the physical parameters on the flow, heat transfer and nanoparticle concentration characteristics of the model are presented through graphs and the salient features are discussed. The present investigation shows that the nanoparticles can improve the heat transfer characteristics significantly for this flow problem.