Inverse energy cascade and emergence of large coherent vortices in turbulence driven by Faraday waves

N. Francois*, H. Xia, H. Punzmann, M. Shats

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    77 Citations (Scopus)

    Abstract

    We report the generation of large coherent vortices via inverse energy cascade in Faraday wave driven turbulence. The motion of floaters in the Faraday waves is three dimensional, but its horizontal velocity fluctuations show unexpected similarity with two-dimensional turbulence. The inverse cascade is detected by measuring frequency spectra of the Lagrangian velocity, and it is confirmed by computing the third moment of the horizontal velocity fluctuations. This is observed in deep water in a broad range of wavelengths and vertical accelerations. The results broaden the scope of recent findings on Faraday waves in thin layers [A. von Kameke et al., Phys. Rev. Lett. 107, 074502 (2011)].

    Original languageEnglish
    Article number194501
    JournalPhysical Review Letters
    Volume110
    Issue number19
    DOIs
    Publication statusPublished - 6 May 2013

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