Balanced nonstationary turbulence
File(s)
Published version
Author(s)
Steiros, Konstantinos
Type
Journal Article
Abstract
Kolmogorov's 1941 (K41) framework remains central to the understanding of turbulent flows. However, in unsteady turbulence, K41's critical equilibrium assumption is expected to hold in an asymptotic manner, as the Reynolds number and wave numbers tend to infinity, rendering K41 not strictly valid at finite wave numbers. This work proposes a generalization of K41 for out-of-equilibrium effects and cascades far from initial conditions. The main result is a correction to the −5/3 law for out-of-equilibrium eddies, unrelated to intermittency effects. Experimental and numerical evidence is provided in support of the theoretical results.
Date Issued
2022-03-01
Date Acceptance
2022-03-04
Citation
Physical Review E: Statistical, Nonlinear, and Soft Matter Physics, 2022, 105 (3)
ISSN
1539-3755
Publisher
American Physical Society
Journal / Book Title
Physical Review E: Statistical, Nonlinear, and Soft Matter Physics
Volume
105
Issue
3
Copyright Statement
©2022 American Physical Society
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/35428113
Subjects
HYPOTHESES
Physical Sciences
Physics
Physics, Fluids & Plasmas
Physics, Mathematical
Science & Technology
VELOCITY
Publication Status
Published
Coverage Spatial
United States
Article Number
035109
Date Publish Online
2022-03-23