A novel laboratory pushing the limits for optics-based basic turbulence investigations

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Abstract

Developments in theoretical investigations and experimental techniques are reaching a level of maturity for which it is finally becoming possible to answer some of the most pressing questions in turbulence. The prevailing classical theories all have their strengths and drawbacks based on their respective principal assumptions. To better understand the implications of these assumptions, we have developed a theoryintensive experimental strategy. For these purposes, a laboratory has been established at the Department of Mechanical Engineering, Technical University of Denmark. The objective being to provide the data necessary to test the (bounds of) validity of the existing theories; Most prominently the classical Richardson-Kolmogorov-Batchelor paradigm, but also other generally adopted views such as Rapid Distortion Theory and Equilibrium Similarity. The measurements will be analyzed within a novel theoretical framework that enables not only quantification of the degree to which the small and intermediate scale turbulence behaves according to the existing theories (and their central assumptions), but also unveiling the underlying processes that create the respective state of turbulent flow. The present work will describe the current state of the developments of building up the laboratory.
Original languageEnglish
Publication date2021
Number of pages10
DOIs
Publication statusPublished - 2021
Event14th International Symposium on Particle Image Velocimetry - Virtuel event
Duration: 1 Aug 20214 Aug 2021

Conference

Conference14th International Symposium on Particle Image Velocimetry
LocationVirtuel event
Period01/08/202104/08/2021

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