Wire coating by withdrawal from a bath of fourth order fluid

This Letter looks an analysis for withdrawal of cylinder. The flow depends upon the wire velocity. The fluid considered is a fourth order fluid. The problem is modeled using cylindrical coordinates for velocity and pressure distributions. The solution of the governing equation is obtained using homotopy analysis method (HAM). The variations of the velocity, volume flow rate, radius of coated wire, shear stress and force on the total wire are presented graphically and discussed for emerging non-Newtonian parameter. (c) 2007 Elsevier B.V. All rights reserved.