Iterative improved reduced system method of fluid-structure interaction with free surface
- Authors
- Lee, Kang-Heon; Chang, Seongmin; Kim, Jin-Gyun
- Issue Date
- 8-Dec-2021
- Publisher
- ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
- Keywords
- Fluid-structure interaction; Reduced-order modeling; Condensation; Iterative method; Free surface
- Citation
- JOURNAL OF SOUND AND VIBRATION, v.514
- Journal Title
- JOURNAL OF SOUND AND VIBRATION
- Volume
- 514
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/20314
- DOI
- 10.1016/j.jsv.2021.116445
- ISSN
- 0022-460X
- Abstract
- The aim of this study is to develop an iterative improved reduced system method for the model reduction of the fluid-structure interaction with free surface. The fluid-structure interaction with incompressible fluid for the interior fluid-structure problem involving a free surface without capillarity effects and a linear elastic structure is analyzed. The present study addresses a wellknown asymmetric formulation that comprises structural displacement, fluid pressure of the free surface, and fluid pressure of the interior fluid. In this study, the formulation is reduced in a condensation manner, which is degree of freedom based reduced-order modeling. In particular, the proposed iterative scheme considers inertia terms and its equivalent transformation, thereby yielding a reduced model that more accurately reflects the features of the fully coupled system. The performance and convergence of this formulation are evaluated through numerical examples.
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Collections - Department of Mechanical Design Engineering > 1. Journal Articles
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