This paper deals with the drainage of Sisko fluid film down a vertical belt. It provides an approximate solution of the resulting non-linear and inhomogeneous ordinary differential equation using perturbation method (PM) and Adomian decomposition method (ADM). Comparison of the results obtained by both methods demonstrate that these series solutions are strictly identical but ADM is easy to compute and can be extended to any higher order. The important physical quantities like velocity profile, volume flow rate, average film velocity, shear stress, force exerted by the fluid film and vorticity vector are derived. The effects of fluid behaviour index, Stokes number and Sisko fluid parameter on some of these physical quantities are observed. Furthermore, we also made a comparison between the Sisko fluid film and Newtonian fluid film.
Siddiqui, A. M.; Ashraf, Hameed; Haroon, T.; and Walait, A.
Analytic Solution for the Drainage of Sisko Fluid Film Down a Vertical Belt,
Applications and Applied Mathematics: An International Journal (AAM), Vol. 8,
2, Article 8.
Available at: https://digitalcommons.pvamu.edu/aam/vol8/iss2/8