Numerical study of radiation effect on MHD transient mixed‐convection flow over a moving vertical cylinder with constant heat flux

Abstract

In this paper, a numerical analysis to study thermal radiation effect on magnetohydrodynamic (MHD) unsteady mixed‐convection flow over a moving vertical cylinder with constant heat flux through a porous medium in the presence of transversal uniform magnetic field has been performed. The boundary layer equations are transformed into a linear algebraic system by a Crank–Nicolson type of implicit finite‐difference method. The stability condition of the scheme was studied. Numerical results are presented with various sets of parameters for both air and water. The results show many interesting effects on velocity, temperature and concentration profiles on local as well as average shear stress, rate of heat and mass transfer. Also, the velocity and temperature profiles are compared with the available results in the literature and it is found to be in good agreement. Copyright© 2007 John Wiley & Sons, Ltd.