Analytical solutions of the helical flow of non-Newtonian fluid in eccentric annular space (Q1339108)

The authors investigate laminar helical flows in an eccentric annular space for two non-Newtonian fluids -- a power law fluid, and a Bingham fluid. The technique used is similar to one employed by the authors in the case of a concentric annular space. The apparent viscosity distribution, the velocity distribution, the flow rate, the pressure drop equations and stability parameter are determined for both fluids, and some analysis is done. This work might be of interest to researchers in the petroleum and chemical industry.