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Chapitre D'ouvrage Année : 2016

The Kolmogorov-Taylor Law of turbulence : what can rigorously be proved ?

Résumé

We define a mathematical framework in which we can specify the Reynolds decomposition and the correlation tensors of an incompressible locally homogeneous and isotropic turbulent flow. After having fixed the technical background and some probabilistic tools, we focus on the 2-order correlation tensor, which is the covariance matrix of the velocity vectors at two different points of the flow. We perform a Taylor expansion of this matrix when the two points are close to one another. We characterize the principal part of this expansion, for which we prove the law of the 2/3 by a mathematical similarity principle.
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Dates et versions

hal-02331035 , version 1 (24-10-2019)

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  • HAL Id : hal-02331035 , version 1

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Roger Lewandowski. The Kolmogorov-Taylor Law of turbulence : what can rigorously be proved ?. Handbook of Applications of Chaos Theory, 2016. ⟨hal-02331035⟩
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