Abstract :
Free-convection heat and mass transfer due to the simultaneous action of buoyancy, radiation and transverse magnetic field is investigated near an isothermal sheet. The sheet is linearly stretched in the presence of a uniform free stream of constant velocity, temperature and concentration. A parametric study is performed to illustrate the influence of the radiation parameter, magnetic parameter, Prandtl number, Grashof number and Schmidt number on the profiles of the velocity components, temperature and concentration. Numerical results show that the radiation have significant influences on the velocity and temperature profiles, Nusselt number and local shear stress. The results indicate that the velocity, fluidʹs temperature and local shear stress decrease as the radiation parameter increases. The Nusslet number increases as the radiation parameter increases.