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arXiv · 2102.08011

Fluid-structure interaction simulations with a LES filtering approach in solids4Foam

Michele Girfoglio·Annalisa Quaini·Gianluigi Rozza
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Abstract

The goal of this paper is to test solids4Foam, the fluid-structure interaction (FSI) toolbox developed for foam-extend (a branch of OpenFOAM), and assess its flexibility in handling more complex flows. For this purpose, we consider the interaction of an incompressible fluid described by a Leray model with a hyperelastic structure modeled as a Saint Venant-Kirchhoff material. We focus on a strongly coupled, partitioned fluid-structure interaction (FSI) solver in a finite volume environment, combined with an arbitrary Lagrangian-Eulerian approach to deal with the motion of the fluid domain. For the implementation of the Leray model, which features a nonlinear differential low-pass filter, we adopt a three-step algorithm called Evolve-Filter-Relax. We validate our approach against numerical data available in the literature for the 3D cross flow past a cantilever beam at Reynolds number 100 and 400.

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Michele Girfoglio, Annalisa Quaini, Gianluigi Rozza. 2021-02-16. Fluid-structure interaction simulations with a LES filtering approach in solids4Foam. https://arxiv.org/abs/2102.08011

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