Research Article

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

Table 1

The constitutive relations for the nine fluid models used in this investigation. The meaning of the symbols is given in Nomenclature.

Model Constitutive relation

Newtonian
Power Law
Ellis ā€‰
Ree-Eyring
Carreau ā€‰
Cross
Bingham
Herschel-Bulkley
Casson