Coalescence of Two Viscous Cylinders by Capillarity: Part II, Shape Evolution

Coalescence of Two Viscous Cylinders by Capillarity: Part II, Shape Evolution
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通过毛细作用实现两个粘性圆柱体的合并:第二部分,形状演变

DOI:
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发表时间:
1993
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影响因子:
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通讯作者:
R. Hopper
R. Hopper
中科院分区:
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文献类型:
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作者:
R. Hopper

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描述了由表面张力驱动的两个粘性圆柱体蠕动平面流合并的理论几何。给出了初始直径比D=(1,2,5,20,[无穷大])的归一化结果。将显示典型的形状。几何特征的时间依赖关系以及它们之间的相互关系以图形的形式呈现。注意到以下特征:缩短的时间与大多数维度之间的关系相当弱地依赖于D。在颈部没有底切。二维弗兰克尔理论是严重错误的。该理论准确地描述了小次数的实验,但最终会出现差异。他们的消息来源不确定。
The theoretical geometry of the creeping plane-flow coalescence of two viscous cylinders driven by surface tension is described. Normalized results are given for initial diameter ratios D = (1,2,5,20, [infinity]). Typical shapes are displayed. Time-dependencies of geometric features, and interrelationships between them, are presented graphically. The following features are noted: the relationships between reduced time and most dimensions depend rather weakly on D. There is no undercutting at the neck. Two-dimensional Frenkel theory is seriously incorrect. The theory describes experiments accurately for small times, but differences eventually appear. Their sources are uncertain.