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Analysis of fluid–structure interaction problems with structural buckling and large domain changes by ALE finite element method

✍ Scribed by Qun Zhang; Toshiaki Hisada

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
872 KB
Volume
190
Category
Article
ISSN
0045-7825

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✦ Synopsis

A 3D ®nite element analysis program is newly developed for ¯uid±structure interaction problems with structural buckling and large domain changes. An arbitrary Lagrangian±Eulerian (ALE) ®nite element method with automatic mesh-updating is formulated for large domain changes. In order to cope with the numerical instability caused by the buckling of a thin shell structure, a strong coupling strategy is adopted together with some stabilization techniques for ¯uids and structures. A few numerical examples, including the simulation of the pulsation of a 2D arti®cal heart and a 3D simpli®ed model with structural buckling and large domain changes, are demonstrated to show the capability of the proposed methods.

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