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Coalescence of Two Viscous Cylinders by Capillarity: Part II, Shape Evolution
Author(s) -
Hopper Robert W.
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb06595.x
Subject(s) - coalescence (physics) , mechanics , surface tension , plane (geometry) , geometry , viscous flow , viscous liquid , classical mechanics , surface (topology) , physics , mathematics , materials science , thermodynamics , astrobiology
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, ∞) 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.