Numerical solution of duct flows of multiple visco-plastic fluids
Numerical solution of duct flows of multiple visco-plastic fluids M.A. Moyers-Gonzaleza∗, I.A. Frigaarda,b a Department of Mathematics, University of British Columbia, 1984 Mathematics Road, Vancouver, BC, Canada V6T 1Z2 b Department of Mechanical Engineering, University of British Columbia, 2324 Main Mall, Vancouver, BC, Canada V6T 1Z4 Received 31 July 2003; received in revised form 13 November 2003; accepted 15 December 2003 This article is part of a Special Volume containing papers from the XIIIth International Workshop on Numerical Methods in Viscoelastic Flows ====================================================================== Abstract We consider numerical solution of duct flows of multiple visco-plastic fluids using both regularisation techniques and the augmented Lagrangian method. Using single fluid test problems, we demonstrate that there are certain classes of problems for which the augmented Lagrangian method is superior. These problems include those of determining the c...