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Journal Articles Journal of Turbulence Year : 2020

Staircase scaling of short-time energy transfer in turbulence

Abstract

It is illustrated that a sharply truncated initial kinetic energy spectrum evolves to a staircase-shaped spectrum at short times. This effect is directly associated with the triadic nature of the energy transfer. A rigorous analysis leads to predictions on the time-dependence of this effect, and these predictions are verified by both direct numerical simulations and eddy-damped quasi-normal Markovian closure integrations.
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Dates and versions

hal-02549376 , version 1 (21-04-2020)

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Le Fang, T. Wu, Wouter J.T. Bos. Staircase scaling of short-time energy transfer in turbulence. Journal of Turbulence, 2020, ⟨10.1080/14685248.2020.1752375⟩. ⟨hal-02549376⟩
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