Dynamic triad interactions and non-equilibrium turbulence

Clara M. Velte, Preben Buchhave

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

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
Original languageEnglish
Title of host publicationProgress in Turbulence IX : Proceedings of the iTi Conference in Turbulence 2021
EditorsRamis Örlü, Alessandro Talamelli, Joachim Peinke, Martin Oberlack
Number of pages10
PublisherSpringer
ISBN (Print)978-3-030-80715-3, 978-3-030-80716-0
Publication statusAccepted/In press - 2021
EventiTi Conference in Turbulence - Online
Duration: 25 Feb 202126 Feb 2021

Conference

ConferenceiTi Conference in Turbulence
LocationOnline
Period25/02/202126/02/2021
SeriesSpringer Proceedings in Physics
Volume267
ISSN0930-8989

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