The dynamic motion of single bubbles with unique shapes rising freely in hydrophobically modified alkali-soluble emulsion polymer solutions
The dynamic motion of single bubbles with unique shapes rising freely in hydrophobically modified alkali-soluble emulsion polymer solutions
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DOI：
10.1122/1.4904911
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发表时间：
2015-01
影响因子：
3.3
通讯作者：
M. Ohta;Naoto Kobayashi;Yoshihiko Shigekane;Y. Yoshida;S. Iwata
中科院分区：
文献类型：
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作者：
M. Ohta;Naoto Kobayashi;Yoshihiko Shigekane;Y. Yoshida;S. Iwata
实验研究了单气泡在疏水改性碱溶性乳液聚合物（HASE）溶液中的上升运动。在这项研究中，我们准备了1.0，1.1，和1.6 wt. %的HASE溶液中，并根据悬浮粘度的值探索气泡上升运动。因此，在高粘度的HASE溶液中，我们发现在气泡的后缘形成了线状的细长分支。对于中等粘度，我们观察到的气泡长，大拖尾裙。这些与牛顿流体系统的不同。在低粘度的情况下，沿着气泡的底部边缘沿着形成许多线状尾部。我们观察到，线状尾巴不规则或定期（单向）旋转取决于气泡的大小沿着气泡的底部边缘。此外，气泡上升运动被认为是基于修改的物理参数和终端气泡上升速度。在我们的实验条件下，据报道，一个跳跃...
The motion of single bubbles rising through hydrophobically modified alkali-soluble emulsion polymer (HASE) solutions is experimentally examined. In this study, we prepare 1.0, 1.1, and 1.6 wt. % HASE solutions and the bubble rise motion is explored depending on the value of the suspending viscosity. Consequently, in a HASE solution with high-viscosity, we find threadlike thin and long branches formed at the trailing edge of the bubble. For moderate-viscosity, we observe bubbles with long and large trailing skirts. These are different from those for Newtonian fluid systems. In the case of low-viscosity, many thread-shaped tails are formed along the bottom edge of the bubble. We observe that threadlike tails irregularly or regularly (unidirectionally) rotate depending on the bubble size along the bottom edge of the bubble. In addition, the bubble rise motion is considered based on modified physical parameters and the terminal bubble rise velocity. In our experimental conditions, it is reported that a jump ...