Fluid-structure interactions using different mesh motion techniques
In this work, we compare different mesh moving techniques for monolithically-coupled fluid-structure interactions in arbitrary Lagrangian-Eulerian coordinates. The mesh movement is realized by solving an additional partial differential equation of harmonic, linear-elastic, or biharmonic type. We exa...
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| Main Author: | |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 May 2011
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| In: |
Computers & structures
Year: 2011, Volume: 89, Issue: 13, Pages: 1456-1467 |
| ISSN: | 0045-7949 |
| DOI: | 10.1016/j.compstruc.2011.02.019 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.compstruc.2011.02.019 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0045794911000629 
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| Author Notes: | Thomas Wick |
MARC
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| 520 | |a In this work, we compare different mesh moving techniques for monolithically-coupled fluid-structure interactions in arbitrary Lagrangian-Eulerian coordinates. The mesh movement is realized by solving an additional partial differential equation of harmonic, linear-elastic, or biharmonic type. We examine an implementation of time discretization that is designed with finite differences. Spatial discretization is based on a Galerkin finite element method. To solve the resulting discrete nonlinear systems, a Newton method with exact Jacobian matrix is used. Our results show that the biharmonic model produces the smoothest meshes but has increased computational cost compared to the other two approaches. | ||
| 650 | 4 | |a Finite elements | |
| 650 | 4 | |a Fluid-structure interaction | |
| 650 | 4 | |a Monolithic formulation | |
| 650 | 4 | |a Biharmonic equation | |
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