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- W1963985143 abstract "Viscoelastic fluids are of great importance in many industrial sectors, such as in food and synthetic polymers industries. The rheological response of viscoelastic fluids is quite complex, including combination of viscous and elastic effects and non-linear phenomena. This work presents a numerical methodology based on the split-stress tensor approach and the concept of equilibrium stress tensor to treat high Weissenberg number problems using any differential constitutive equations. The proposed methodology was implemented in a new computational fluid dynamics (CFD) tool and consists of a viscoelastic fluid module included in the OpenFOAM, a flexible open source CFD package. Oldroyd-B/UCM, Giesekus, Phan-Thien–Tanner (PTT), Finitely Extensible Nonlinear Elastic (FENE-P and FENE-CR), and Pom–Pom based constitutive equations were implemented, in single and multimode forms. The proposed methodology was evaluated by comparing its predictions with experimental and numerical data from the literature for the analysis of a planar 4:1 contraction flow, showing to be stable and efficient." @default.
- W1963985143 created "2016-06-24" @default.
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- W1963985143 date "2010-12-01" @default.
- W1963985143 modified "2023-10-10" @default.
- W1963985143 title "Viscoelastic flow analysis using the software OpenFOAM and differential constitutive equations" @default.
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- W1963985143 doi "https://doi.org/10.1016/j.jnnfm.2010.08.010" @default.
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