2009 Fiscal Year Final Research Report
Development of freak wave prediction method
| Project/Area Number |
19360225
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
水工水理学
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| Research Institution | Independent Administrative Institution Port and Airport Research Institute |
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Principal Investigator |
NAGAI Toshihiko Independent Administrative Institution Port and Airport Research Institute, 理事 (00359233)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Nobihito 京都大学, 防災研究所, 准教授 (90371476)
HIRAYAMA Katsuya 独立行政法人・港湾空港技術研究所, 海洋・水工部, 研究チームリーダー (60371754)
KAWAGUCHI Koji 独立行政法人・港湾空港技術研究所, 海洋・水工部, 主任研究官 (50371753)
HIRAISHI Tetsuya 独立行政法人港湾空港技術研究所, 海洋・水工部, 部長 (20371750)
KAWAI Hiroyasu 独立行政法人港湾空港技術研究所, 海洋・水工部, 研究チームリーダー (40371752)
KASHIMA Hiroaki 独立行政法人港湾空港技術研究所, 海洋・水工部, 研究官 (60463098)
SHIMIZU Katsuyoshi 独立行政法人港湾空港技術研究所, 海洋・水工部, 上席研究官 (80392984)
NAKAGAWA Yasuyuki 独立行政法人港湾空港技術研究所, 海洋・水工部, 主任研究官 (30360762)
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| Research Collaborator |
JANSSEN Peter A.M.E ヨーロッパ中期気象予報センター
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| Project Period (FY) |
2007 – 2009
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| Keywords | Freak wave / Rogue wave / 異常波浪 / 最大波高 / 方向スペクトル / 非線形干渉 / 海洋工学 |
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| Research Abstract |
Freak wave is abnormal big wave, which causes various sea disasters. This study developed reliable prediction of freak wave. The definition of freak wave is the wave height larger than twice of significant wave in the train and the statistical distribution of maximum wave height as functions of wave spectrum parameters. The fourth-order moment of surface elevation is correlated with the maximum wave height and the freak wave is possible to prediction based on the wave spectrum information. The validity of the theory was verified by field data and experiments.
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