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Session: Intermittency and scaling 2
Session starts: Tuesday 25 August, 15:00
Presentation starts: 16:15
Room: Room H

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Jonas Boschung (RWTH Aachen University)
Michael Gauding (TU Bergakademie Freiberg)
Fabian Hennig (RWTH Aachen University)
Norbert Peters (RWTH Aachen University)
Heinz Pitsch (RWTH Aachen University)

Abstract:
While Kolmogorov's similarity hypothesis suggests that velocity structure functions scale with the mean dissipation $\left< \varepsilon \right>$ and the viscosity $\nu$, we find that the $2m.$ even order scales with $\left< \varepsilon^m \right>$. This implies that there are other cut-off lengths than the Kolmogorov length $\eta$. These cut-off lengths are smaller than $\eta$ and decrease with increasing order and Reynolds-number. They are compared to a previous definition of order dependent dissipative scales by Schumacher~et.~al\cite{schumacher2007asymptotic}.