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Erschienen in: Computational Mechanics 5/2016

01.05.2016 | Original Paper

Assessment and improvement of mapping algorithms for non-matching meshes and geometries in computational FSI

verfasst von: Tianyang Wang, Roland Wüchner, Stefan Sicklinger, Kai-Uwe Bletzinger

Erschienen in: Computational Mechanics | Ausgabe 5/2016

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Abstract

This paper investigates data mapping between non-matching meshes and geometries in fluid-structure interaction. Mapping algorithms for surface meshes including nearest element interpolation, the standard mortar method and the dual mortar method are studied and comparatively assessed. The inconsistency problem of mortar methods at curved edges of fluid-structure-interfaces is solved by a newly developed enforcing consistency approach, which is robust enough to handle even the case that fluid boundary facets are totally not in contact with structure boundary elements due to high fluid refinement. Besides, tests with representative geometries show that the mortar methods are suitable for conservative mapping but it is better to use the nearest element interpolation in a direct way, and moreover, the dual mortar method can give slight oscillations. This work also develops a co-rotating mapping algorithm for 1D beam elements. Its novelty lies in the ability of handling large displacements and rotations.

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Metadaten
Titel
Assessment and improvement of mapping algorithms for non-matching meshes and geometries in computational FSI
verfasst von
Tianyang Wang
Roland Wüchner
Stefan Sicklinger
Kai-Uwe Bletzinger
Publikationsdatum
01.05.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Computational Mechanics / Ausgabe 5/2016
Print ISSN: 0178-7675
Elektronische ISSN: 1432-0924
DOI
https://doi.org/10.1007/s00466-016-1262-6

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