Exit time of turbulent signals: a way to detect the intermediate dissipative range

Abstract

The exit time statistics of experimental turbulent data is analyzed. By looking at the exit-time moments (Inverse Structure Functions) it is possible to have a direct measurement of scaling properties of the laminar statistics. It turns out that the Inverse Structure Functions show a much more extended Intermediate Dissipative Range than the Structure Functions, leading to the first clear evidence of the universal properties of such a range of scales.

4 RevTeX pages (3 eps figures included)

References in corpus (3)

• Multiscaling and Structure Functions in Turbulence: An Alternative Approach
• Mimicking a turbulent signal: sequential multiaffine processes
• Relative dispersion in fully developed turbulence: from Eulerian to Lagrangian statistics in synthetic flows

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