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Long Time Correlations in Lagrangian Dynamics: A Key to Intermittency in Turbulence
2002
Physical Review Letters
New aspects of turbulence are uncovered if one considers flow motion from the perspective of a fluid particle (known as the Lagrangian approach) rather than in terms of a velocity field (the Eulerian viewpoint). Using a new experimental technique, based on the scattering of ultrasounds, we have obtained a direct measurement of particle velocities, resolved at all scales, in a fully turbulent flow. It enables us to approach intermittency in turbulence from a dynamical point of view and to
doi:10.1103/physrevlett.89.254502
pmid:12484891
fatcat:kfilqlzukjejliwe5cwerbryxu