Combined effects of wind shear, rainfall and swell on mass transfer across the air-water interface

风切变、降雨和膨胀对空气-水界面传质的综合影响

• 批准号: 22246020
• 负责人: KOMORI Satoru
• 金额: $ 30.7万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22246020/
• 关键词: 環境乱流; 乱流; 混相流; 数値流体力学

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.

在无降雨的风浪水池中进行的测量表明，风切变气液界面的传质过程中，风速、盐度和夹带气泡对传质的影响很小。在有降雨的风浪水池中进行的测量表明，雨滴撞击促进的传质系数与降雨的垂直动量通量有很好的相关性。此外，液滴下落诱导水流的实验可视化和数值预测都表明，单个液滴撞击水面会产生液面向下的流动，并加强空气-水界面的传质。

项目成果

Measurement of momentum flux across the air-water interface in high-speed wind-wave tank

高速风浪池气水界面动量通量测量

• 发表时间: 2012
• 作者: Osamu TERASHIMA;Yasuhiko SAKAI;Kouji NAGATA;Yasumasa ITO;Kazuhiro ONISHI;Yusuke GOTO;Kensuke MIURA;N. Takagaki & S. Komori
• 通讯作者: N. Takagaki & S. Komori

Sensible and latent heat transfer across the air-water interface in wind-driven turbulence

风驱动湍流中空气-水界面的显热和潜热传递

• 发表时间: 2011
• 期刊: Gas Transfer at Water Surfaces (eds. S. Komori, W. McGillis, R. Kurose), Kyoto University Press, Kyoto
• 作者: S. Komori;R. Kurose;N. Takagaki;S.Ohtsubo;K. Iwano;K. Handa;S. Shimada
• 通讯作者: S. Shimada

Numerical simulation off low past a heated/cooled sphere

低空加热/冷却球体的数值模拟

• DOI: 10.1017/jfm.2011.517
• 发表时间: 2012
• 期刊: Journal of Fluid Mechanics
• 影响因子: 3.7
• 作者: R. Kurose;M. Anami;A. Fujita;S. Komori
• 通讯作者: S. Komori

砕波を伴う高風速下における水位変動の測定

高风速破浪下水位波动的测量

• 发表时间: 2012
• 作者: Osamu TERASHIMA;Yasuhiko SAKAI;Kouji NAGATA;Yasumasa ITO;高垣直尚,島田 暁,倉本武典,岩野耕治,神内浩行,黒瀬良一,小森 悟
• 通讯作者: 高垣直尚,島田 暁,倉本武典,岩野耕治,神内浩行,黒瀬良一,小森 悟

風波乱流場における気液間CO2移動に関する降雨パラメータの検討

风波湍流场中与气液CO2传递相关的降雨参数研究

• 发表时间: 2012
• 作者: Kensuke MIURA;Kouji NAGATA;Yasuhiko SAKAI;Osamu TERASHIMA and Yasumasa ITO;高垣直尚，坂本遼平，藤井一穂，岩野耕治，黒瀬良一，小森 悟
• 通讯作者: 高垣直尚，坂本遼平，藤井一穂，岩野耕治，黒瀬良一，小森 悟