The effects of droplets on mass transfer in wind-driven turbulence with breaking waves

Ken Ichi Sugioka; Satoru Komori

doi:10.1299/kikaib.71.7

The effects of droplets on mass transfer in wind-driven turbulence with breaking waves

Ken Ichi Sugioka, Satoru Komori

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

The effects of dispersed droplets on mass transfer across the air-water interface with breaking waves were experimentally and numerically investigated. The diameter, velocity and horizontal flux of droplets were measured using a phase Doppler anemometer. The results show that the horizontal flux of droplets has an unversal size distribution independent of wind speed and height, and that the horizontal flux of droplets increases in proportion to the 8th power of friction velocity. In addition, the mass transfer across the air-water interface of a single droplet was estimated by means of a direct numerical simulation (DNS). The DNS shows that the contribution of dispersed droplets to the total mass transfer across air-water interface with breaking wave is about 0.3%.

Original language	English
Pages (from-to)	7-14
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	71
Issue number	701
DOIs	https://doi.org/10.1299/kikaib.71.7
Publication status	Published - 2005 Jan
Externally published	Yes

Keywords

Air-water Interface
Breaking Wave
Mass Transfer
Sea Spray

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.71.7

Cite this

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title = "The effects of droplets on mass transfer in wind-driven turbulence with breaking waves",

abstract = "The effects of dispersed droplets on mass transfer across the air-water interface with breaking waves were experimentally and numerically investigated. The diameter, velocity and horizontal flux of droplets were measured using a phase Doppler anemometer. The results show that the horizontal flux of droplets has an unversal size distribution independent of wind speed and height, and that the horizontal flux of droplets increases in proportion to the 8th power of friction velocity. In addition, the mass transfer across the air-water interface of a single droplet was estimated by means of a direct numerical simulation (DNS). The DNS shows that the contribution of dispersed droplets to the total mass transfer across air-water interface with breaking wave is about 0.3%.",

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AU - Komori, Satoru

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AB - The effects of dispersed droplets on mass transfer across the air-water interface with breaking waves were experimentally and numerically investigated. The diameter, velocity and horizontal flux of droplets were measured using a phase Doppler anemometer. The results show that the horizontal flux of droplets has an unversal size distribution independent of wind speed and height, and that the horizontal flux of droplets increases in proportion to the 8th power of friction velocity. In addition, the mass transfer across the air-water interface of a single droplet was estimated by means of a direct numerical simulation (DNS). The DNS shows that the contribution of dispersed droplets to the total mass transfer across air-water interface with breaking wave is about 0.3%.

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KW - Breaking Wave

KW - Mass Transfer

KW - Sea Spray

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The effects of droplets on mass transfer in wind-driven turbulence with breaking waves

Abstract

Keywords

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