Dispersal of droplets over breaking wind waves under the direct action of wind
| Autor: | Momoki Koga |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Physics
Wind gradient Meteorology Infragravity wave Astrophysics::High Energy Astrophysical Phenomena General Engineering Soil Science Breaking wave Mechanics Oceanography Wind speed Physics::Fluid Dynamics Log wind profile Wind shear Physics::Space Physics Wind wave Astrophysics::Solar and Stellar Astrophysics General Earth and Planetary Sciences Dispersion (water waves) Physics::Atmospheric and Oceanic Physics Earth-Surface Processes General Environmental Science |
| Zdroj: | Journal of the Oceanographical Society of Japan. 40:29-38 |
| ISSN: | 1573-868X 0029-8131 |
| Popis: | This paper describes the dispersal of droplets over breaking wind waves under the direct action of wind, based on a comparison between the actual distribution of droplet velocity and the wind field measured in a wind-wave tank (reference wind speed 16 m sec−1). The velocity distribution of droplets with a diameterd>0.81 mm over breaking wind waves was measured by Koga (1981). In this paper the wind field over breaking wind waves is measured by a flow visualization technique using styrofoam flakes as a tracer. The comparison allows a clear interpretation of droplet movement over the wave profile, and shows that the horizontal movement of the droplets ofd>0.81 mm is approximately determined by acceleration by the wind while their vertical movement is determined by acceleration due to gravity. These observations offer some support for the dispersion model proposed by Koga and Toba (1981). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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