TRANSIENT NATURAL-CONVECTION THROUGH VERTICAL POROUS STRATUM

An analytical study is made to examine the flow behaviour of a fully d eveloped transient free-convective flow of an incompressible viscous f luid between two heated vertical walls in a porous system. A Laplace t ransform technique has been employed to obtain the expression for velo city, temperature and skin-friction. The influence of the various para meters, entering into the problem, on the velocity field and skin-fric tion is discussed in detail.