Complex spontaneous flows and concentration banding in active polar films

L Giomi, MC Marchetti, TB Liverpool

Research output: Contribution to journalArticle (Academic Journal)peer-review

79 Citations (Scopus)

Abstract

We study the dynamical properties of active polar liquid crystalline films. Like active nematic films, active polar films undergo a dynamical transition to spontaneously flowing steady states. Spontaneous flow in polar fluids is, however, always accompanied by strong concentration inhomogeneities or “banding” not seen in nematics. In addition, a spectacular property unique to polar active films is their ability to generate spontaneously oscillating and banded flows even at low activity. The oscillatory flows become increasingly complicated for strong polarity.
Translated title of the contributioncomplex spontaneous flows and concentration banding in active polar films
Original languageEnglish
Article number198101
Number of pages4
JournalPhysical Review Letters
Volume101
Issue number19
DOIs
Publication statusPublished - 7 Nov 2008

Bibliographical note

Publisher: APS

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