Experimental analysis of the interactions between approaching surfaces in a multiphase system with impurities

含杂质的多相系统中接近表面之间相互作用的实验分析

• 批准号: 24760140
• 负责人: OGASAWARA Toshiyuki
• 金额: $ 2.91万
• 依托单位: Osaka Prefecture University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760140/
• 关键词: 液膜; 気泡; 気泡クラスター; 界面活性剤; 電解質; 気泡の合体; 光干渉計; 気泡クラスタ; 流体工学; レーザー干渉計

The drainage process and the rupture of a thin liquid film formed between interfaces and the clustering behavior of spherical bubbles with the constraint of motions in two-dimensional plain, which govern the fluid structure of bubbly flows through bubble-bubble and bubble-wall interactions, have been investigated experimentally. On the behavior of the thin liquid film formed between a rigid surface and an approaching bubble surface with a constant speed, the impurities such as surfactants and electrolytes in water greatly affect and avoid the drainage and rupture of the film, and the quantitative evaluation of their time evolutional thickness distributions has been done. On the other hand, similar phenomena for the clustering behaviors of the spherical bubbles rising under an inclined flat plate have been clarified regardless of no-slip and free-slip boundary conditions of the bubble surface.

实验研究了二维平面内运动约束条件下气泡的排液过程和破裂过程，以及气泡与气泡和气泡壁面的相互作用对气泡流结构的影响。在刚性表面与匀速接近的气泡表面之间形成的薄液膜的行为中，水中的表面活性剂和电解质等杂质对膜的排出和破裂有很大的影响和避免作用，并定量地评价了它们随时间演化的厚度分布。另一方面，类似的现象的球形气泡在倾斜平板下上升的群集行为已经澄清，无论无滑移和自由滑移边界条件的气泡表面。

项目成果

Effects of surfactant and electrolyte on the drainage of the thin liquid film between a glass plate and a bubble approaching at a constant velocity

表面活性剂和电解质对玻璃板与等速接近气泡之间液膜排泄的影响

• 发表时间: 2013
• 作者: Saori Shimoyama;Toshiyuki Ogasawara;Hiroyuki Takahira
• 通讯作者: Hiroyuki Takahira

気液界面と固体壁面間に形成される液膜の膜厚分布計測

气液界面与固体壁面形成液膜的膜厚分布测量

• 发表时间: 2012
• 作者: Toshiyuki Ogasawara;Saori Shimoyama;Hiroyuki Takahira;小笠原紀行,下山沙織,高比良裕之
• 通讯作者: 小笠原紀行,下山沙織,高比良裕之

Laser interferometer measurement of a liquid film thickness distribution between bubble and solid surfaces

激光干涉仪测量气泡和固体表面之间的液膜厚度分布

• 发表时间: 2013
• 作者: Toshiyuki Ogasawara;Saori Shimoyama;Hiroyuki Takahira
• 通讯作者: Hiroyuki Takahira

レーザ干渉計を用いた気泡と固体壁面間に形成される液膜の膜厚分布計測

使用激光干涉仪测量气泡和固体壁之间形成的液膜的厚度分布

• 发表时间: 2012
• 作者: 重光 亨;他2名.;下山沙織,小笠原紀行,高比良裕之
• 通讯作者: 下山沙織,小笠原紀行,高比良裕之