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NAGAOKA, Shinsuke; NAKABAYASHI, Yasushi; YAGAWA, Genki;

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The paper proposes a new analysis method for fluid-structure problems, which has nodal consistency at the fluid-structure interface and its calculation efficiency and accuracy are high. The incompressible viscous fluid analysis method using the P1-P1 element based on SUPG/PSPG developed by Tezduyar et al. is used for fluid analysis, while the high-accuracy analysis method based on EFMM developed by the authors is adopted for structure analysis. As the common feature of these methods, it is possible to analyze a fluid or a structure rather accurately by using the first order triangular of tetrahedral elements. In addition, variables are exchanged exactly at the common nodes on the fluid-structure boundary without deteriorating accuracy and calculation efficiency due to the interpolation of variables between nodes. The Present method is applied to a fluid-structure interaction problem by simulating the deformation of a red blood cell. At this time, to solve a bottleneck of EFMM that is needed a lot of time to make a stiffness matrix, we introduced a parallel processing to EFMM.

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Palavras-chave: Fluid-Structure coupled analysis, Enriched Free Mesh Method, SUPG/PSPG stabilized FEM, Parallel processing,


DOI: 10.5151/meceng-wccm2012-19119

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Como citar:

NAGAOKA, Shinsuke; NAKABAYASHI, Yasushi; YAGAWA, Genki; "PARALLEL COMPUTING OF FLUID-STRUCTURE COUPLED ANALYSIS USING SUPG/PSPG AND ENRICHED FREE MESH METHOD", p. 2989-3005 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-19119

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