Mass transfer effects on unsteady free convection Couette flow

In the present paper, mass transfer effect on the unsteady free-convective flow of an incompressible viscous fluid between two vertical parallel plates is discussed for impulsive start of one of the plate. Expressions for velocity, temperature and concentration are obtained by the Laplace transform technique. The influence of the Prandtl number (Pr), Schmidt number (Sc) and time parameter (t) on velocity field and skin-friction are discussed extensively.