Observation of an Inverse Energy Cascade in Developed Acoustic Turbulence in Superfluid Helium

Preprint

27 January 2009

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.0901.4353

Abstract

We report observation of an inverse energy cascade in second sound acoustic turbulence in He II. Its onset occurs above a critical driving energy and it is accompanied by giant waves that constitute an acoustic analogue of the rogue waves that occasionally appear on the surface of the ocean. The theory of the phenomenon is developed and shown to be in good agreement with the experiments.

Keywords

INVERSE ENERGY CASCADE
ACOUSTIC TURBULENCE
DEVELOPED ACOUSTIC
SUPERFLUID HELIUM
TURBULENCE

All Related Versions

Version 1, 2009-01-27, ArXiv
Published version: Physical Review Letters, 101 (6), 065303.

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