On iterative solvers for non‐Newtonian flow equations

摘要: Purpose – This study proposes to develop and investigate different iterative solvers for non‐Newtonian flow equations.Design/methodology/approach Existing approaches the time discretization of equation an solution discrete systems are discussed. Ideas further development existing preconditioners proposed, implemented investigated numerically.Findings A two‐level preconditioning, consisting a transformation original system in first step subsequent preconditioning transformed is suggested. The GMRES method, which usually performs well when applied academic problems, showed dissatisfactory performance type industrial simulations this work. It was found that BiCGStab method performed best tests presented here.Research limitations/implications considered here were only certain class polymer flows. More detailed studies for...