Evidence for organized small-scale structure in fully developed turbulence

Details Evidence for organized small-scale structure in fully developed turbulence Evidence for organized small-scale structure in fully developed turbulence

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvl..64..415s&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 64, Jan. 22, 1990, p. 415-418.

Physics

Fluid Dynamics

40

Flow Distribution, Flow Theory, Turbulent Flow, Vortices, Flow Visualization, Fluid Dynamics

Scientific paper

Visual evidence has been obtained for the existence in fully developed turbulence of characteristic small-scale flow patterns which are tentatively identified as layered vortex sheets. The pattern geometry is consistent with previously observed properties of intermittent bursts. The structures are found to scale with the turbulence scales and to exhibit a spatial variation limited by the Kolmogorov length. At microscale Reynolds numbers of order 100, this organized fine-scale structure occupies an appreciable fraction of the total fluid volume.

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