In this paper, a new computational technique was used to solve a system of nonlinear second order equations that govern the steady magnetohydrodynamic(MHD) flow of a viscous incompressible and electrically conducting fluid past a rotating disk in a porous medium. Approximate analytic solutions are found and the effects of ohmic heating and viscous dissipation on the fluid properties are determined. The results are presented graphically.

Key words: Magnetohydrodynamic (MHD) flow, heat transfer, rotating disk, porous medium, Chebyshev spectral method, spectral-homotopy analysis method.