Natural convection of fluid with variable viscosity from a heated vertical wavy surface

In the present paper, the effect of a temperature dependent viscosity on natural convection flow of viscous incompressible fluid from a vertical wavy surface has been investigated using an implicit finite difference method. Here we have focused our attention on the evaluation of the local skin-friction and the local Nusselt number. The governing parameters are, the Prandtl number, Pr, ranging from 1 to 100, the amplitude of the waviness of the surface, alpha, ranging from 0.0 to 0.4 and the viscosity variation parameter, epsilon, ranging from 0.0 to 6.