| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
It is of great importance to investigate the mechanisms of momentum transfer across strongly-breaking air-sea interface in order to predict the development and decay of tropical cyclones accurately. The purpose of this study is, by applying laboratory experiments with wind-wave tanks along with numerical simulations, to investigate the mechanisms of momentum transfer across strongly-breaking air-sea interface and to develop a momentum transfer model. The results show that; (1) the development of wind waves at normal wind speeds is different from that at extremely high wind speeds; (2) the effects of air-side freestream turbulence on the development of wind waves is negligibly small; and (3) the numerical simulation with Level-set/VOF method is applicable to the development of wind waves.
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