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Structural Engineering and Mechanics Volume 41, Number 4, February25 2012 , pages 559-573 DOI: https://doi.org/10.12989/sem.2012.41.4.559 |
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Adaptive fluid-structure interaction simulation of large-scale complex liquid containment with two-phase flow |
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Sung-Woo Park and Jin-Rae Cho
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| Abstract | ||
| An adaptive modeling and simulation technique is introduced for the effective and reliable fluid-structure interaction analysis using MSC/Dytran for large-scale complex pressurized liquid containment. The proposed method is composed of a series of the global rigid sloshing analysis and the locally detailed fluid-structure analysis. The critical time at which the system exhibits the severe liquid sloshing response is sought through the former analysis, while the fluid-structure interaction in the local region of interest at the critical time is analyzed by the latter analysis. Differing from the global coarse model, the local fine model considers not only the complex geometry and flexibility of structure but the effect of internal pressure. The locally detailed FSI problem is solved in terms of multi-material volume fractions and the flow and pressure fields obtained by the global analysis at the critical time are specified as the initial conditions. An in-house program for mapping the global analysis results onto the fine-scale local FSI model is developed. The validity and effectiveness of the proposed method are verified through an illustrative numerical experiment. | ||
| Key Words | ||
| large-scale liquid containment; fluid-structure interaction; Adaptive FSI Simulation; Multimaterial volume fractions; two-phase flow; coarse- and fine-scale models | ||
| Address | ||
| Sung-Woo Park: School of Mechanical Engineering, Pusan National University, Busan 609-735, Korea Jin-Rae Cho: School of Mechanical Engineering, Pusan National University, Busan 609-735, Korea; Research and Development Institute of Midas IT, Gyeonggi 463-400, Korea | ||