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Conference paper · Book chapter

Dynamic triad interactions and non-equilibrium turbulence

From

Fluid Mechanics, Coastal and Maritime Engineering, Department of Mechanical Engineering, Technical University of Denmark1

Department of Mechanical Engineering, Technical University of Denmark2

Intarsia Optics3

The classical K41 theory, based on the ideas of Kolmogorov, Richardson and Batchelor, has in recent years with accumulating evidence become subject to increased scrutiny. We elaborate on the idea that the deficiencies of the theory originate in the fundamental assumption of universal equilibrium, which in turn is the result of the basic assumption of locality of nonlinear interactions.

These very fundamental assumptions are argued to have no anchoring in the governing Navier-Stokes equation. The possibility for other kinds of solutions are discussed from a historical perspective. K41 is also identified to represent an equilibrium solution that cannot predict non-equilibrium turbulence

Language: English
Publisher: Springer
Year: 2021
Pages: 3-12
Proceedings: iTi Conference in Turbulence
Series: Springer Proceedings in Physics
Journal subtitle: Proceedings of the Iti Conference in Turbulence 2021
ISBN: 3030807150 , 3030807169 , 9783030807153 and 9783030807160
ISSN: 18674941 and 09308989
Types: Conference paper and Book chapter
DOI: 10.1007/978-3-030-80716-0_1
ORCIDs: Velte, Clara M.

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