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Nonuniversal power-law spectra in turbulent systems

Title data

Bratanov, Vasil ; Jenko, Frank ; Hatch, David R. ; Wilczek, Michael:
Nonuniversal power-law spectra in turbulent systems.
In: Physical Review Letters. Vol. 111 (2013) Issue 7 . - No. 075001.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.111.075001

Abstract in another language

Turbulence is generally associated with universal power-law spectra in scale ranges without significant drive or damping. Although many examples of turbulent systems do not exhibit such an inertial range, power-law spectra may still be observed. As a simple model for such situations, a modified version of the Kuramoto-Sivashinsky equation is studied. By means of semianalytical and numerical studies, one finds power laws with nonuniversal exponents in the spectral range for which the ratio of nonlinear and linear time scales is (roughly) scale independent.

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 09:21
Last Modified: 24 Feb 2022 10:45
URI: https://eref.uni-bayreuth.de/id/eprint/67614