Effect of variable viscosity on flow past a porous wedge with suction or injection: new results

An analysis is carried out to study the problem of the steady flow and heat transfer of an incompressible fluid over a static wedge in the presence of suction/injection with variable viscosity. The viscosity is assumed to vary as inverse linear function of temperature. The governing partial differential equations are first transformed into a system of non-linear ordinary differential equations using similarity transformations, and later solved numerically by using Runge–Kutta–Fehlberg method with shooting technique. The velocity and temperature profiles, the skin friction and the rate of heat transfer are computed and discussed for various values of suction/injection parameter, viscosity parameter and Hartree pressure gradient parameter for gases and liquids.