Small-scale anisotropy in Lagrangian turbulence

Details Small-scale anisotropy in Lagrangian turbulence Small-scale anisotropy in Lagrangian turbulence

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006njph....8..102o&link_type=abstract

New Journal of Physics, Volume 8, Issue 6, pp. 102 (2006).

Physics

19

Scientific paper

We report measurements of the second-order Lagrangian structure function and the Lagrangian velocity spectrum in an intensely turbulent laboratory flow. We find that the asymmetries of the large-scale flow are reflected in the small-scale statistics. In addition, we present new measurements of the Lagrangian structure function scaling constant C0, which is of central importance to stochastic turbulence models as well as to the understanding of turbulent pair dispersion and scalar mixing. The scaling of C0 with the turbulence level is also investigated, and found to be in agreement with an existing model.

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