Whittaker, Robert ORCID: https://orcid.org/0000-0001-9598-5938 and Cox, Simon
(2019)
Stability of a twisted plateau border with line tension and bending stiffness.
IMA Journal of Applied Mathematics, 84 (2).
pp. 385-415.
ISSN 0272-4960
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Abstract
The stability of a Plateau border between three soap films is considered, taking into account the effects of line tension and bending stiffness in the border. A simple geometry is considered, in which the border initially lies in equilibrium along the axis of a circular cylinder, with three equally-spaced films radiating outwards to meet the inside wall of the cylinder. The films are pinned at the two ends of the cylinder with a fixed relative twist, so the initial film surfaces are helicoids. The stability of this system to small perturbations, involving both the films and the border, is investigated as a function of the cylinder aspect ratio, twist angle, film surface tension, border line tension, and border bending stiffness. Analytically, the stability problem is reduced to finding the first occurrence of a zero eigenvalue of an infinite matrix, which is then estimated numerically. The results from this calculation are in good agreement with full numerical simulations.
Item Type: | Article |
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Faculty \ School: | Faculty of Science > School of Mathematics (former - to 2024) |
UEA Research Groups: | Faculty of Science > Research Groups > Fluid and Solid Mechanics |
Depositing User: | LivePure Connector |
Date Deposited: | 13 Feb 2019 14:30 |
Last Modified: | 12 Aug 2024 00:22 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/69922 |
DOI: | 10.1093/imamat/hxy063 |
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