2012 Fiscal Year Final Research Report
Research on Strongly Nonlinear Fluid-Structure Interactions by Wave Impact and Its Applications
| Project/Area Number |
21246128
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
FUJIKUBO Masahiko 大阪大学, 大学院・工学研究科, 教授 (30156848)
IIJIMA Kazuhiro 大阪大学, 大学院・工学研究科, 准教授 (50302758)
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| Co-Investigator(Renkei-kenkyūsha) |
HU Changhong 九州大学, 応用力学研究所, 准教授 (20274532)
HE Guanghua 大阪大学, 大学院・工学研究科, 助教 (50625382)
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| Research Collaborator |
SASAKAWA Takuma 大阪大学, 大学院・工学研究科, 大学院学生
WAKABAYASHI Tomi 大阪大学, 大学院・工学研究科, 大学院学生
NAKAGAWA Daisuke 大阪大学, 大学院・工学研究科, 大学院学生
YAMAMOTO Kenta 大阪大学, 大学院・工学研究科, 大学院学生
HARA Takuya 大阪大学, 大学院・工学研究科, 大学院学生
SAKAI Katsuhiro 大阪大学, 大学院・工学研究科, 大学院学生
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| Project Period (FY) |
2009 – 2012
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| Keywords | 流体・構造連成問題 / 数値流体力学 / 波浪衝撃 / 非線形境界要素法 / ランンキンパネル法 / 有限要素法 |
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| Research Abstract |
The CIP-based Cartesian-grid calculation method for strongly nonlinear wave and rigid-body interaction problems was extended to treat the case of elastic-body motions in waves. A hybrid method was also developed, combining a 3D Rankine panel method for the hydrodynamic analysis and a finite-element method for computing elastic vibration modes, and the effect of elastic modes on wave-induced ship motions was investigated. Furthermore, a time-domain nonlinear calculation method based on the boundary element method was studied, which enabled us to simulate the interaction of wave impact and elastic motion of a vertical plate.Experimental studies were also done, measuring complicate fluid motion near the ship bow caused by the green-water impact by use of a high-speed camera.
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Research Products
(57 results)
