Flow of viscous incompressible fluid with temperature dependent viscosity and thermal conductivity past a permeable wedge with uniform surface heat flux

We consider a steady two-dimensional laminar forced flow and heat transfer of a viscous incompressible fluid having temperature dependent viscosity an d thermal conductivity past a wedge with a uniform surface heat flux. The g overning equations, reduced to local nonsimilarity boundary layer equations using suitable transformations, have been integrated employing an implicit finite difference method. Perturbation techniques are employed to obtain t he solutions near the leading edge as well as far from it. The perturbation solutions are compared with the finite difference solutions and found to b e in excellent agreement. The results are presented in terms of local skin friction coefficient and rate of heat transfer for Various values of the go verning parameters, such as the Prandtl number Pr, the pressure gradient pa rameter m, the viscosity variation parameter epsilon and thermal conductivi ty variation parameter gamma, against the local permeability parameter m. T he effect of variations in xi, epsilon and gamma on the dimensionless veloc ity, viscosity and thermal conductivity distributions are also depicted gra phically for Pr = 0.7. (C) 2000 Editions scientifiques et medicales Elsevie r SAS.