Combined effects of wind shear, rainfall and swell on mass transfer across the air-water interface
| Project/Area Number |
22246020
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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 |
Fluid engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
KOMORI Satoru 京都大学, 大学院・工学研究科, 教授 (60127082)
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| Co-Investigator(Kenkyū-buntansha) |
KUROSE Ryoichi 京都大学, 大学院・工学研究科, 准教授 (70371622)
TAKAGAKI Naohisa 京都大学, 大学院・工学研究科, 助教 (00554221)
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| Co-Investigator(Renkei-kenkyūsha) |
SUZUKI Naoya 近畿大学, 理工学部, 講師 (40422985)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥47,970,000 (Direct Cost: ¥36,900,000、Indirect Cost: ¥11,070,000)
Fiscal Year 2012: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2011: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2010: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
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| Keywords | 環境乱流 / 乱流 / 混相流 / 数値流体力学 |
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| Research Abstract |
The measurements in a wind-wave tank without rainfall show that the effects of fetch, salinity and entrained bubbles on mass transfer across the wind-sheared air-water interface are negligibly small. The measurements in a wind-wave tank with a rainfall show that the mass transfer coefficient promoted by raindrops’impingement is well correlated with the vertical momentum flux of rainfall. In addition, both experimental visualization of water flow induced by a falling drop and numerical predictions show that the impingement of a single liquid drop on the water surface generates the downward flow on the liquid side and enhances the mass transfer across the air-water interface.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Strong correlation between the drag coefficient and the shape of the wind sea spectrum over a broad range of wind speeds2012
Author(s)
Takagaki, N., Koraori, S., Suzuki, N., Iwano, K., Kuramoto, T., Shimada, S., Kurose, R., Takahashi, K.
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Journal Title
Geophysical Research Letters
Volume: 39
Issue: 23
DOI
Related Report
Peer Reviewed
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[Journal Article] Sensible and latent heat transfer across the air-water interface in wind-driven turbulence2011
Author(s)
S. Komori, R. Kurose, N. Takagaki, S.Ohtsubo, K. Iwano, K. Handa, S. Shimada
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Journal Title
Gas Transfer at Water Surfaces (eds. S. Komori, W. McGillis, R. Kurose), Kyoto University Press, Kyoto
Pages: 78-89
Related Report
Peer Reviewed
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