Variational-Monolithic ALE Fluid-Structure Interaction: Comparison of Computational Cost and Mesh Regularity Using Different Mesh Motion Techniques

Thomas Wick

doi:10.1007/978-3-319-67168-0_21

Variational-Monolithic ALE Fluid-Structure Interaction: Comparison of Computational Cost and Mesh Regularity Using Different Mesh Motion Techniques

Thomas Wick

https://doi.org/10.1007/978-3-319-67168-0_21

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Publication Date: Jan 1, 2017

Citations: 2

Affiliation: Johann Radon Institute for Computational and Applied Mathematics, Technical University of Munich, Austrian Academy of Sciences

#For Fluid-structure Interaction #For Fluid-structure Interaction Problem + Show 8 more

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Abstract

In this contribution, different mesh motion models for fluid-structure interaction (FSI) are revisited. The FSI problem is formulated by variational-monolithic coupling in the reference configuration employing the arbitrary-Lagrangian Eulerian (ALE) framework. The goal is to further analyze three different mesh motion models; namely nonlinear harmonic, nonlinear elastic, and linear biharmonic. The novelty in this contribution is a detailed computational analysis of the regularity of the ALE mapping and cost complexity for the nonstationary FSI-2 benchmark problem with large solid deformations.

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