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Turbulence and turbulent pattern formation in a minimal model for active fluids

Title data

James, Martin ; Bos, Wouter J. T. ; Wilczek, Michael:
Turbulence and turbulent pattern formation in a minimal model for active fluids.
In: Physical Review Fluids. Vol. 3 (2018) Issue 6 . - No. 061101.
ISSN 2469-990X
DOI: https://doi.org/10.1103/PhysRevFluids.3.061101

Abstract in another language

Active matter systems display a fascinating range of dynamical states, including stationary patterns and turbulent phases. While the former can be tackled with methods from the field of pattern formation, the spatiotemporal disorder of the active turbulence phase calls for a statistical description. Borrowing techniques from turbulence theory, we here establish a quantitative description of correlation functions and spectra of a minimal continuum model for active turbulence. Further exploring the parameter space, we also report on a surprising type of turbulence-driven pattern formation far beyond linear onset: the emergence of a dynamic hexagonal vortex lattice state after an extended turbulent transient, which can only be explained taking into account turbulent energy transfer across scales.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I > Chair Theoretical Physics I - Univ.-Prof. Dr. Michael Wilczek
Profile Fields > Advanced Fields > Nonlinear Dynamics
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 24 Feb 2022 09:30
Last Modified: 24 Feb 2022 09:30
URI: https://eref.uni-bayreuth.de/id/eprint/67617