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

02/16/2021 ∙ by Michele Girfoglio, et al. ∙ 0

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. The main novelty of this paper lies in applying a Leray model for the description of the flow field within a FSI context. 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. All the computational results presented in this article have been obtained with solids4Foam, the FSI toolbox developed for foam-extend, a branch of OpenFOAM. 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.

READ FULL TEXT
POST COMMENT

Comments

There are no comments yet.

Authors

page 10

page 11

page 13

This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.