Abstract
The finite-element method has been applied to solve numerically equations governing fully developed laminar flow of power-law non-Newtonian fluid in a rectangular duct. The resulting finite-element solutions for the velocity profile have been further utilized to obtain the numerical values of the friction factor-Reynolds number product for duct aspect ratios ranging from 0.05 to 1.0 and for power-law indices ranging from 0.2 to 2.0, i.e., both shear-thinning and shear-thickening cases are considered.
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