Flows of viscoelastic fluids treated by the method of characteristics

Abstract Some numerical results for fluids of the John son-Segalman type, obtained with a transient finite element algorithm basedon 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.

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