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Scaling properties of fluctuations in stationary turbulence
Authors:Grossmann  S
Institution:(1) Fachbereich Physik, Philipps-Universität, Renthof 6, D-3550 Marburg, Federal Republic of Germany
Abstract:Turbulent fluctuations are treated using a stationary distribution functionw st for an order parameter fieldPSgr representing a fluid. Naive scale invariance ofw st yields thek –5/3 spectral law in three dimensions andk –3 in two dimensions. The noise parameter of the stationary distribution is connected with energy flow or enstrophy conservation, respectively. In order to include fluctuations of the local energy dissipation a grand distribution function is introduced.
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