Stagnation point flow of Eyring Powell fluid in a vertical cylinder with heat transfer

Abstract

In this paper an analysis is carried out to examine the effects of natural convection heat transfer for steady boundarylayer flow of an Eyring Powell fluid flowing through a vertical circular cylinder. The governing partial differentialequations along with the boundary conditions are reduced to dimensionless form by using the boundary layerapproximation and applying suitable similarity transformations. The resulting nonlinear coupled system of ordinarydifferential equations subject to the appropriate boundary conditions is solved using the analytic techniquehomotopy analysis method (HAM). The effects of the physical parameters on the flow and heat transfer characteristicsare presented. The behavior of skinfriction coefficient and Nusselt numbers are also studied for differentparameters.