Analytical and numerical solutions of nonlinear differential equations arising in non-Newtonian fluid flows

Solutions for a class of nonlinear second order differential equations, arising in a viscoelastic fluid now at a rotating cylinder, are obtained. Furthermore, using the Shauder theory and the perturbation technique existence, uniqueness and analyticity results are established. Moreover, the exact analytical solutions tin integral form) are compared with the corresponding numerical ones, (C) 2000 Academic Press