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Energy dissipation statistics in a shell model of turbulence

G. Boffetta, A. Celani, D. Roagna

chao-dynarXiv:chao-dyn/9909045

Abstract

The Reynolds number dependence of the statistics of energy dissipation is investigated in a shell model of fully developed turbulence. The results are in agreement with a model which accounts for fluctuations of the dissipative scale with the intensity of energy dissipation. It is shown that the assumption of a fixed dissipative scale leads to a different scaling with Reynolds which is not compatible with numerical results.

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