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arXiv · 0903.2731

On scaling and statistical geometry in passive scalar turbulence

Andrea Mazzino·Paolo Muratore-Ginanneschi
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Abstract

We show that the statistics of a turbulent passive scalar at scales larger than the pumping may exhibit multiscaling due to a weaker mechanism than the presence of statistical conservation laws. We develop a general formalism to give explicit predictions for the large scale scaling exponents in the case of the Kraichnan model and discuss their geometric origin at small and large scale.

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Andrea Mazzino, Paolo Muratore-Ginanneschi. 2009-05-22. On scaling and statistical geometry in passive scalar turbulence. https://doi.org/10.1103/physrevlett.99.144502

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