arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10434physics.flu-dyn
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Hele-Shaw池中上升气泡压扁的理论分析

Theoretical analysis for flattening of a rising bubble in a Hele-Shaw cell

Xianmin Xu, Masao Doi, Jiajia Zhou, Yana Di

摘要:

我们计算的形状和速度的气泡上升的无限大和封闭的Hele-Shaw细胞使用Park和Homsy的边界条件,占的三维结构的变化,在周边区域。我们首先制定的问题的形式,变分问题,并讨论了形状的变化,假设气泡采取椭圆形。我们计算了气泡的形状和速度作为气泡尺寸,间隙距离和细胞的倾斜角度的函数。我们表明,泡沫是扁平的,因为它上升。这一结果与大型Hele-Shaw细胞的实验结果一致。

英文摘要:

We calculate the shape and the velocity of a bubble rising in an infinitely large and closed Hele-Shaw cell using Park and Homsy's boundary condition which accounts for the change of the three dimensional structure in the perimeter zone. We first formulate the problem in the form of a variational problem, and discuss the shape change assuming that the bubble takes elliptic shape. We calculate the shape and the velocity of the bubble as a function of the bubble size, gap distance and the inclination angle of the cell. We show that the bubble is flattened as it rises. This result is in agreement with experiments for large Hele-Shaw cells.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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