2010 Fiscal Year Final Research Report
A study on breaking wind waves with white caps by means of Visualization with high-speed video cameras
| Project/Area Number |
20360223
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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 |
Hydraulic engineering
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| Research Institution | Kinki University |
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Principal Investigator |
TAKEHARA Kohsei Kinki University, 理工学部, 教授 (50216933)
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| Co-Investigator(Kenkyū-buntansha) |
ETOH Takeharu 近畿大学, 理工学部, 教授 (20088412)
SUZUKI Naoya 近畿大学, 理工学部, 講師 (40422985)
TAKANO Yasuhide 近畿大学, 理工学部, 講師 (80330231)
MORI Nobuhito 京都大学, 防災研究所, 准教授 (90371476)
MIZUTANI Natsuki 大阪産業大学, 工学部, 教授 (50356036)
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| Research Collaborator |
THORODDSEN Sigurdur T. King Abdullah University of Science & Technology, 教授
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| Project Period (FY) |
2008 – 2010
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| Keywords | 風波 / 気体輸送 / ホワイトキャップ / 高速ビデオカメラ / 画像計測 |
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| Research Abstract |
In order to understand the mechanism of gas-transfer at wind waves with whitecaps, a PTV measurement technique was developed to measure flow fields under wind wave. The measurement technique was applied to flow field under white-cap which occurred by wind wave braking. The properties of air flows over wind waves and bubbles which generated by wave breaking were also measured by image processing techniques. In addition, global CO_2 exchange between air-sea by breaking waves was estimated by the field measurement data and satellite data.
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