Finite Volume Approach To Sudden 2d Asymmetric Expansion Flows For Power-Law Non-Newtonian Fluids.

Abstract

In this work a numerical solution is developed for the incompressible laminar flow
of non-Newtonian power-law type fluids through a 2D channel with a sudden asymmetric
expansion. A finite volume approach, with the SIMPLE method, is implemented and tested for
power-law fluids, and compared against the Newtonian behavior. Velocity profiles are
presented for a range of Reynolds numbers, power-law exponents, and geometric expansion
ratios. The results for recirculation, reattachment and pressure distributions on the walls are
also presented.