Reproducing dangerous waves to understand the causes of marine accidents
| Project/Area Number |
25249126
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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 | The University of Tokyo |
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Principal Investigator |
Waseda Takuji 東京大学, 新領域創成科学研究科, 教授 (30376488)
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| Co-Investigator(Kenkyū-buntansha) |
TANIZAWA Katsuji (独)海上技術安全研究所, 流体性能評価系, 系長 (70373420)
HOUTANI Hidetaka (独)海上技術安全研究所, 流体性能評価系, 研究員 (30636808)
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| Co-Investigator(Renkei-kenkyūsha) |
KIYOMATSU Keiji 東京大学, 大学院新領域創成科学研究科, 特任研究員 (20647953)
TAMURA Hitoshi (独)海洋研究開発機構, 地球環境変動領域, 研究員 (80419895)
RHEEM Chankyu 東京大学, 生産技術研究所, 教授 (70272515)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥33,800,000 (Direct Cost: ¥26,000,000、Indirect Cost: ¥7,800,000)
Fiscal Year 2015: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2014: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
Fiscal Year 2013: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
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| Keywords | 海難事故 / 船舶工学 / 海洋科学 / 巨大波 / ステレオ計測 / 造波法 / 船体応答 |
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| Outline of Final Research Achievements |
Ship accidents in seas near Japan and throughout the world are considered to be caused by encounters with freak waves whose height outstand the surrounding waves. However, wave measurement at the time of the accident is rather limited, and the actual causes of the ship accidents are seldom discovered. In this research, we have developed a system to numerically hindcast the sea state during the ship accident and analyze the dangerous wave, and generate the wave in an experimental model basin. Sea states when freak waves were observed in an open ocean were analyzed and freak waves were generated in the tank. Through this study, we have gained new knowledge about the geometry of the freak waves, its temporal evolution, and the associated ship motion and load.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Predicting freakish sea state with an operational third-generation wave model2014
Author(s)
Waseda, T., In, K., Kiyomatsu, K., Tamura, H., Miyazawa, Y., & Iyama, K.
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Journal Title
Natural Hazards and Earth System Science
Volume: 14
Issue: 4
Pages: 945-957
DOI
Related Report
Open Access / Acknowledgement Compliant
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[Presentation] Marine Accident Analysis System2015
Author(s)
Houtani, H., Waseda, T., Fujimoto, W., Kiyomatsu, K. & Tanizawa, K.
Organizer
Summer School in Cargese: Rogue and Shock Waves in Nonlinear Dispersive Media
Place of Presentation
Cargese, Italy
Year and Date
2015-06-06
Related Report
Int'l Joint Research
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[Presentation] Reproducing freak waves in fully directional wave basin based on HOSM simulation2014
Author(s)
Houtani, H., Waseda, T., Fujimoto, W., Kiyomatsu, K., and Tanizawa, K.
Organizer
Waves in Shallow water Environments International Conference
Place of Presentation
ECMWF, Reading, UK
Year and Date
2014-06-08 – 2014-06-12
Related Report
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[Presentation] Reproducing freak waves in a fully directional wave basin based on HOSM simulation2014
Author(s)
Houtani, H., Waseda, T., Fujimoto, W., Kiyomatsu, K. and Tanizawa, K.
Organizer
Waves In Shallow water Environments International Conference
Place of Presentation
ECMWF, Reading, UK
Year and Date
2014-06-08 – 2014-06-12
Related Report
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