perturbation-iteration algorithm for solving heat and mass transfer in the unsteady squeezing flow between parallel plates

In this paper, heat and mass transfer in the unsteady squeezing flow between parallel plates is analyzed using a perturbation-iteration algorithm. the similarity transformation is used to transform the governing partial differential equations into ordinary differential equations, before being solved. the solutions of the velocity, temperature and concentration are derived and sketched to explain the influence of various physical parameters. the convergence of these solutions is also discussed. the numerical results of skin friction coefficient, nusselt number and sherwood number are compared with previous works. the results show that the method which has been used, in this paper, gives convergent solutions with good accuracy.