Analysis of gas transfer mechanisms due to air bubble and turbulence at the air-water interface

空气-水界面处气泡和湍流引起的气体传递机制分析

基本信息

  • 批准号:
    12305031
  • 负责人:
  • 金额:
    $ 17.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    2000
  • 资助国家:
    日本
  • 起止时间:
    2000 至 2002
  • 项目状态:
    已结题

项目摘要

A dual-tip void probe was developed as a extension of standard single void probe. The validity of dual-tip void probe was verified and applied to bubble characteristics induced by breaking wave in the mechanically generated wave in the flume. The amount of gas transfer flowing rate instead of traditional gas transfer velocity was proposed to estimate the gas transfer rate in the surf zone, quantitatively (Kakuno, Shigematsu and Hosoi). The characteristics of turbulence in bubbly flows were measured and analyzed in the experimental facility (Asai). The droplet collision into the water surface was measured using 1 million frame per second ultra-high speed camera. The instability of thin gas film between droplet and water surface shows clear Reynolds number and Weber number dependence (Etoh). The relationship between the surface renewal process and micro scale turbulence has been measured by Particle Image Velocimetry and Laser Induced Fluorescence in a lattice turbulence (Sugihara). The simultaneous visualizations of air and water velocities were conducted in the wind-wave flume. The organized motion of air and water flows were measured and the bursting motions of air flow into the water were observed visually (Takehara, Etoh, Shigematsu and Tsujimoto). The bubble diameter distribution and bubble source functions were measured using Phase-Doppler anemometry in the wind-wave flume. The coherent bubble diameter spectra were measured under the wind-wave breaking (Mori). The field observations of bubble distributions under the wind-wave breaking were investigated using ultra sonic sensor at the upper ocean (Yoshioka). The gas transfer model at the breaking wave interface was proposed as a summary of above results (Moog).
作为标准单孔探针的扩展,开发了双孔探针。验证了双探头空隙探针的有效性,并将其应用于水槽中机械波破碎波诱导气泡特性的研究。提出了用气体输送流量代替传统的气体输送速度来定量估算碎波带气体输送速率的方法(Kakuno,Shigematsu和Hokuo)。在实验装置(Asai)上对泡状流的湍流特性进行了测量和分析。使用每秒100万帧的超高速相机测量水滴碰撞到水面。液滴和水面之间的薄气膜的不稳定性显示出明显的雷诺数和韦伯数的依赖性(Etoh)。本文用粒子图像测速技术和激光诱导荧光技术在晶格湍流中测量了表面更新过程与微尺度湍流之间的关系。同时显示的空气和水的速度进行了风浪水槽。测量气流和水流的有组织运动,并目视观察气流进入水中的爆发运动(竹原、Etoh、Shigematsu和Tsujimoto)。在风浪水槽中,利用相位多普勒测速技术测量了气泡直径分布和气泡源函数。在风浪破碎(Mori)条件下测量了相干气泡直径谱。利用超声波传感器在吉冈海洋上层对风浪破碎条件下气泡分布进行了现场观测。在此基础上提出了破碎波界面处的气体传输模型。

项目成果

期刊论文数量(31)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kakuno S.et al.: "The effect of bubbles on air water oxygen transfer in the breaker zone"Gas Transfer at Water Surfaces/M.A. Donelan et al. eds.. 265-270 (2002)
Kakuno S.et al.:“气泡对断路器区域空气水氧传输的影响”水面气体传输/M.A.
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    0
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竹原幸生,R.J.Adrian,江藤剛治: "KC法を用いた新しいsuper-resolution PIVの提案"水工学論文集. 第44巻. 431-436 (2000)
Yukio Takehara、R.J. Adrian、Goji Eto:“使用 KC 方法的新型超分辨率 PIV 的提议”《水利工程杂志》,第 44 卷,431-436(2000 年)
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    0
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竹原幸生, 真木正弘, 辻本剛三, 江藤剛治, 高野保英: "風波発生時における水面近傍の気流・水流のPTV同時計測"海岸工学論文集. 第49巻. 66-70 (2002)
Yukio Takehara、Masahiro Maki、Gozo Tsujimoto、Goji Eto、Yasuhide Takano:“风浪发生时水面附近气流和水流的同步 PTV 测量”海岸工程论文卷 49. 66-70 (2002)。
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    0
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森 信人, 今村正裕: "2色LIF-PIVを用いた水表面におけるガス交換過程の計測"海岸工学論文集. 第49巻. 96-100 (2002)
Nobuto Mori、Masahiro Imamura:“使用双色 LIF-PIV 测量水面气体交换过程”沿海工程杂志第 49 卷 96-100 (2002)。
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    0
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辻本剛三,角野昇八,竹原幸生,重松孝昌: "Performance of a horizontal plate withpeforations for shorekine protection"International coastal symposium 2000. 72-73 (2000)
Gozo Tsujimoto、Shohachi Sumino、Yukio Takehara、Takamasa Shigematsu:“用于海岸带保护的穿孔水平板的性能” 国际海岸研讨会 2000. 72-73 (2000)
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KAKUNO Shohachi其他文献

KAKUNO Shohachi的其他文献

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{{ truncateString('KAKUNO Shohachi', 18)}}的其他基金

Studies on elucidation of the air-water gas transfer mechanism on the surface of breakers and the modeling of it
破碎机表面空气-水气体传递机制的阐明及其建模研究
  • 批准号:
    10450185
  • 财政年份:
    1998
  • 资助金额:
    $ 17.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Study on Air-Sea Gas Transfer at Natural Coast
天然海岸海气输送研究
  • 批准号:
    08650614
  • 财政年份:
    1996
  • 资助金额:
    $ 17.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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工作油中气泡含量的高精度控制
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Polymorphism control of drug candidate compounds at the interface of liquid/air bubble induced by femtosecond laser irradiation
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    26286042
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    2014
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Control of air bubble cluster by a vortex ring launched into still water
通过射入静水中的涡环来控制气泡团
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    25420114
  • 财政年份:
    2013
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    $ 17.24万
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    Grant-in-Aid for Scientific Research (C)
Anomalous interfacial air-bubble dynamics: the importance of electrokinetic effects in thin film drainage
异常界面气泡动力学:动电效应在薄膜排水中的重要性
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    DP0986371
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    2009
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    Discovery Projects
Admicelle-air bubble flotation system for rapid and efficient removal of environmental pollutants from waste water
Admicelle-气泡气浮系统可快速有效地去除废水中的环境污染物
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    12558071
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    2000
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Premixed Combustion of Low Volatile Liquid Fuel by Air Bubble Blowing
低挥发性液体燃料鼓泡预混燃烧
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    10650196
  • 财政年份:
    1998
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Applicatin of a half-toroidal continuously variable transmission to an electric-vehicle drive-train and visualization of air-bubble behavior in the traction contact
半环形无级变速器在电动汽车传动系统中的应用以及牵引接触中气泡行为的可视化
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    07555373
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吹气泡抑制沸腾的研究
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    05650189
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    1993
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    Grant-in-Aid for General Scientific Research (C)
An Investgation of the Air Bubble and Crystallographic Characteristics of Frozen, Soaked Rime
冻结、浸泡的雾凇的气泡和晶体学特征的研究
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    8720519
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    1988
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A Study on Hydraulic Behaviors of Air-Bubble Plumes in Stratified Water Body
分层水体中气泡羽流的水力行为研究
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