Research Article

Variational Approach for Resolving the Flow of Generalized Newtonian Fluids in Circular Pipes and Plane Slits

Figure 4

Comparing the analytical solution (solid line) to the variational solutions (circles) of in s−1 (vertical axis) versus in m (horizontal axis) for the flow of the nine fluid models in slits. The EL solutions are not represented for the Ellis and viscoplastic fluids. The slit and fluid parameters are given in Table 5, where in all cases  Pa.
(a) Newtonian
(b) Power Law
(c) Ellis
(d) Ree-Eyring
(e) Carreau
(f) Cross
(g) Bingham
(h) Herschel-Bulkley
(i) Casson