Numerical study around the corotational Maxwell model for the viscoelastic fluid flows |
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Authors: | D. Sandri |
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Affiliation: | LAN, Bât. 101, Université de Lyon 1, 69622 Villeurbanne cedex, France |
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Abstract: | We present numerical results for the FEM (finite element method) presented in [Comput. Methods Appl. Mech. Engrg. 191 (2002) 5045–5065]. This method is devoted to the approximation of fluid flows obeying the Oldroyd model. A particularity of this method, is to take into account the purely viscoelastic case, the so-called Maxwell model, important in practice. Numerical results are given for a fluid flowing in an abrupt plane 4 to 1 contraction. We use the corotational Maxwell model as benchmark in the choice of our computations. Results are also given for the upper convected Maxwell model. Interesting effects appear on the velocity profile: a phenomenon of quasi slip at the downstream wall. |
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Keywords: | Finite element method Viscoelastic flows |
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