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Flows of viscoelastic fluids treated by the method of characteristics. (English) Zbl 0718.76015
Summary: Some numerical results for fluids of the Johnson-Segalman type, obtained with a transient finite element algorithm based on splitting techniques (decoupled approach) are presented. The first time sub-step deals with the dynamical part and incompressibility and the second, with the constitutive equation. In both, the method of characteristics is used. Validating numerical experiments involve the entry length and 4:1 contraction problems, for co-rotational and co-deformational fluids.

MSC:
76A10 Viscoelastic fluids
76M10 Finite element methods applied to problems in fluid mechanics
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