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On the quality of viscoelastic flow solutions: An adaptive refinement study of a Newtonian and a maxwell fluid
Author(s) -
Rao Rekha R.,
Finlayson Bruce A.
Publication year - 1990
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650110508
Subject(s) - newtonian fluid , non newtonian fluid , finite element method , viscoelasticity , generalized newtonian fluid , mechanics , rotational symmetry , adaptive mesh refinement , herschel–bulkley fluid , fluid dynamics , norm (philosophy) , classical mechanics , mathematics , physics , computer science , rheology , thermodynamics , shear rate , political science , law
Abstract Little adaptive finite element work has been done in the area of viscoelastic flow in complex geometries. In this paper an adaptive finite element mesh refinement study is carried out on a Newtonian fluid and a Maxwell fluid in an axisymmetric 4:1 contraction. The error indicator used for the refinement is the local norm of the residual in an element. For the Newtonian fluid, steady improvement with refinement is seen, though this is not the case for the Maxwell fluid, which never achieves a solution of good quality.