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Paper detail

Implementation of the Log-Conformation Formulation for Two-Dimensional Viscoelastic Flow

We have implemented the log-conformation method for two-dimensional viscoelastic flow in COMSOL, a commercial high-level finite element package. The code is verified for an Oldroyd-B fluid flowing past a confined cylinder. We are also able to describe the well-known bistability of the viscoelastic flow in a cross-slot geometry for a FENE-CR fluid, and we describe the changes required for performing simulations with the Phan-Thien-Tanner (PTT), Giesekus and FENE-P models. Finally, we calculate the flow of a FENE-CR fluid in a geometry with three in- and outlets. The implementation is included in the supplementary material, and we hope that it can inspire new as well as experienced researchers in the field of differential constitutive equations for viscoelastic flow.

preprint2016arXivOpen access
K. E. JensenP. SzaboF. Okkels
Computational Engineering, Finance, and Sciencephysics.flu-dyn
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K. E. JensenP. SzaboF. Okkels

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