Kolmogorov scaling and intermittency in Rayleigh-Taylor turbulence

Abstract

The Rayleigh--Taylor (RT) turbulence is investigated by means of high resolution numerical simulations. The main question addressed here is on whether RT phenomenology can be considered as a manifestation of universality of Navier--Stokes equations with respect to forcing mechanisms. At a theoretical level the situation is far from being firmly established and, indeed, contrasting predictions have been formulated. Our first aim here is to clarify the above controversy through a deep analysis of scaling behavior of relevant statistical observables. The effects of intermittency on the mean field scaling predictions is also discussed.

4 pages, 5 figures

References in corpus (3)

• Twenty-five years of multifractals in fully developed turbulence: a tribute to Giovanni Paladin
• Self-Similarity and Universality in Rayleigh-Taylor, Boussinesq Turbulence
• Rayleigh-Taylor turbulence is nothing like Kolmogorov turbulence in the self similar regime

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