EFFECT OF RIVLIN-ERICKSEN FLUID ON UNSTEADY LAMINAR FREE CONVECTIVE FLOW ALONG A MOVING POROUS HOT VERTICAL PLATE WITH THERMAL DIFFUSION AND MASS TRANSFER

摘要

The purpose of the present problem is to study the effect of Rivlin-Ericksen fluid on unsteady laminar free convective flow through porous medium along a moving porous hot vertical plate in the presence of heat source and thermal diffusion with mass transfer. The governing equations of motions are solved by a regular perturbation technique. The velocity of dusty fluid and dust particles and skin friction are discussed with the help of tables and graphs. The velocities of dusty fluid and dust particles increase for y ≤ 2, but these velocities decrease slightly for y > 2 with an increase in λ_1 (visco-elastic parameter). The velocities of dusty fluid and dust particles increase with the increase in Q (Velocity ratio parameter), but it decreases with the increase in M(Hartman number).