Abstract
In the current research work, a liquid film flow of Oldroyd-B fluid with internal heat in vertical porous medium in an oscillating belt is being examined in unsteady state. For this phenomenon, by using basic equations of fluid motion we get a mathematical model. The obtained model problem is solved for the exact analytic solutions by Optimal Homotopy Asymptotic Method (OHAM). Velocity, temperature fields with the mass flow-rate and heat transfer rate of the fluid flow at the belt are also calculated. The effect of pertinent parameters like k(1). relaxation time parameter, k(2). retardation time parameter,. porosity parameter, R radiation parameter and P-r Prandtl number on velocity and temperature fields are also deliberated and then are presented graphically.