Radiation effect on mixed convection laminar flow along a vertical wavy surface

The effect of thermal radiation on a steady two-dimensional mixed convection laminar flow of viscous incompressible optically thick fluid along a vertical wavy surface has been investigated. We consider the boundary layer regime when the Reynolds number Re is large. Using the appropriate variables; the basic equations are transformed to convenient form, and then solved numerically employing two efficient method, namely (i) Keller box method (KBM) and (ii) straightforward finite difference (SFFD) method. Numerical results are presented by streamline and isotherms, velocity and temperature distribution of the fluid as well as the, shearing stress, local, average and total heat transfer rate in terms of the skin-friction coefficient, local, average and total Nusselt number respectively for a wide range of the radiation–conduction parameter or Planck number Rd, surface heating parameter θw, amplitude of the wavy surface α and the Richardson number Ri(=Gr/Re2).