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arXiv · 0801.3717

Kolmogorov scaling from random force fields

Mogens H. Jensen·Kim Sneppen·Luiza Angheluta
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Abstract

We show that the classical Kolmogorov and Richardson scaling laws in fully developed turbulence are consistent with a random Gaussian force field. Numerical simulations of a shell model approximation to the Navier-Stokes equations suggest that the fluctuations in the force (acceleration) field are scale independent throughout the inertial regime. We conjecture that Lagrangian statistics of the relative velocity in a turbulent flow is determined by the typical force field, whereas the multiscaling is associated to extreme events in the force field fluctuations.

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Mogens H. Jensen, Kim Sneppen, Luiza Angheluta. 2008-01-24. Kolmogorov scaling from random force fields. https://doi.org/10.1209/0295-5075/84/10011

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