Time Dependent Oldroyd-B Liquid Film Flow over an Oscillating and Porous Vertical Plate with the Effect of Thermal Radiation

摘要

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, A porosity parameter, R radiation parameter and P_r Prandtl number on velocity and temperature fields are also deliberated and then are presented graphically.