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Lagrangian statistics in fully developed turbulence

L. Biferale·G. Boffetta·A. Celani·A. Lanotte·F. Toschi
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Abstract

The statistical properties of fluid particles transported by a fully developed turbulent flow are investigated by means of high resolution direct numerical simulations. Single trajectory statistics is investigated in a time range spanning more than three decades, from less than a tenth of the Kolmogorov timescale up to one large-eddy turnover time. Acceleration and velocity statistics show a neat quantitative agreement with recent experimental results. Trapping effects in vortex filaments give rise to enhanced small-scale intermittency on Lagrangian observables.

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L. Biferale, G. Boffetta, A. Celani, A. Lanotte, F. Toschi. 2004-02-19. Lagrangian statistics in fully developed turbulence. https://arxiv.org/abs/nlin/0402032

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