Discrete Self-Similarity in Interfacial Hydrodynamics and the Formation of Iterated Structures

Michael C. Dallaston, Marco A. Fontelos, Dmitri Tseluiko, Serafim Kalliadasis

Research output: Contribution to journalArticle

7 Citations (Scopus)
19 Downloads (Pure)

Abstract

The formation of iterated structures, such as satellite and subsatellite drops, filaments, and bubbles, is a common feature in interfacial hydrodynamics. Here we undertake a computational and theoretical study of their origin in the case of thin films of viscous fluids that are destabilized by long-range molecular or other forces. We demonstrate that iterated structures appear as a consequence of discrete self-similarity, where certain patterns repeat themselves, subject to rescaling, periodically in a logarithmic time scale. The result is an infinite sequence of ridges and filaments with similarity properties. The character of these discretely self-similar solutions as the result of a Hopf bifurcation from ordinarily self-similar solutions is also described.

Original languageEnglish
Article number034505
JournalPhysical Review Letters
Volume120
Issue number3
DOIs
Publication statusPublished - 19 Jan 2018

Bibliographical note

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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