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Condensed Matter > Soft Condensed Matter
Title: Friction mediated phase transition in confined active nematics
(Submitted on 28 Feb 2023 (v1), last revised 25 Oct 2023 (this version, v3))
Abstract: Using a minimal continuum model, we investigate the interplay between circular confinement and substrate friction in active nematics. Upon increasing the friction from low to high, we observe a dynamical phase transition from a circulating flow phase to an anisotropic flow phase in which the flow tends to align perpendicular to the nematic director at the boundary. We demonstrate that both the flow structure and dynamic correlations in the latter phase differ from those of an unconfined, active turbulent system and may be controlled by the prescribed nematic boundary conditions. Our results show that substrate friction and geometric confinement act as valuable control parameters in active nematics.
Submission history
From: Cody Schimming [view email][v1] Tue, 28 Feb 2023 19:47:44 GMT (5810kb)
[v2] Fri, 28 Jul 2023 16:36:22 GMT (5841kb)
[v3] Wed, 25 Oct 2023 21:48:29 GMT (5841kb)
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