Emergence of Non-Gaussianity in Turbulence
Fully developed turbulence is characterized by markedly non-Gaussian statistics. Here, we discuss some aspects of the relation between non-Gaussianity, the emergence of coherent structures and phase correlations in turbulence. Direct numerical simulations of homogeneous isotropic turbulence are used to demonstrate a fairly rapid emergence of non-Gaussian statistics from Gaussian initial conditions.
We acknowledge insightful discussions with Michele Buzzicotti and Miguel Bustamante. This work was supported by the Max Planck Society.
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