Journal article
Viscoelastic confinement induces periodic flow reversals in active nematics
- Abstract:
- We use linear stability analysis and hybrid lattice Boltzmann simulations to study the dynamical behavior of an active nematic confined in a channel made of viscoelastic material. We find that the quiescent, ordered active nematic is unstable above a critical activity. The transition is to a steady flow state for high elasticity of the channel surroundings. However, below a threshold elastic modulus, the system produces spontaneous oscillations with periodic flow reversals. We provide a phase diagram that highlights the region where time-periodic oscillations are observed and explain how they are produced by the interplay of activity and viscoelasticity. Our results suggest experiments to study the role of viscoelastic confinement in the spatiotemporal organization and control of active matter.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 500.9KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevE.108.064611
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review E More from this journal
- Volume:
- 108
- Issue:
- 6
- Article number:
- 064611
- Publication date:
- 2023-12-19
- Acceptance date:
- 2023-11-22
- DOI:
- EISSN:
-
2470-0053
- ISSN:
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2470-0045
- Language:
-
English
- Keywords:
- Pubs id:
-
1591824
- Local pid:
-
pubs:1591824
- Deposit date:
-
2024-01-09
Terms of use
- Copyright holder:
- Mori et al.
- Copyright date:
- 2023
- Rights statement:
- Copyright © 2023 The Author(s). 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.
- Licence:
- CC Attribution (CC BY)
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