2015 Fiscal Year Final Research Report
A Study on Development of Numerical Code for VIM analysis of Floating Structure for Ocean Renewable Energy
| Project/Area Number |
25289312
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Hideyuki 東京大学, 大学院新領域創成科学研究科, 教授 (00196859)
OZAKI Masahiko 東京大学, 大学院新領域創成科学研究科, 教授 (30529706)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | VIM / 浮体構造物 / 格子ボルツマン法 / 流体力 |
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| Outline of Final Research Achievements |
A numerical code for 3D coupled analysis of fluid-structure interaction was developed based on the lattice Boltzmann method. The cross-flow displacements were compared among floating structures with circular, ellipsoidal, and square columns and it was found that the floater with square column has the minimum amplitude. It was also found that interaction between the vortex shed by the front column and the rear column suspend the vortex-induced motion. To validate these findings, single column and four columns were towed in the towing tank and the hydrodynamic force was measured.
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| Free Research Field |
工学
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