Melting Effect on Unsteady Heat and Mass Transfer by MHD Mixed Convection Flow over an Impulsively Stretched Vertical Surface in a Quiescent Fluid

The problem of unsteady, laminar, coupled heat and mass transfer by MHD mixed convective boundary-layer flow of electrically conducting fluid over impulsively stretched vertical surface in an unbounded quiescent fluid with aiding external flow in the presence of a transverse magnetic field and melting effects is considered. The flow is impulsively set into motion rest and both of the temperature and concentration at the surface are also suddenly changed from that of the ambient fluid. The governing partial differential equations are transformed into a set of non-similar equations and solved numerically by an efficient implicit, iterative, finite-difference method. A parametric study illustrating the influence of various physical parameters is performed. Numerical results for the steady-state velocity, temperature and concentration profiles as well as the time histories of the skin-friction coefficient, local Nusselt number and the local Sherwood number are presented graphically and discussed.