Homotopy perturbation method for hear transfer of peristaltic flow of viscoelastic fluid in eccentric cylinder with varaible effects

In this paper the Homotopy perturbation method (HPM) has been used to solve the normalized system of non-linear partial differential equations describing the momentum, energy and mass transfer, under appropriate boundary conditions of peristaltic viscoelastic Jeffery fluid flow with complaint wall. The influence of Prandtl number, Eckert number, radius, time, on variable viscosity, velocity, temperature and axial pressure gradient distributions are studied graphically.