Helicity Transfer in Turbulent Models

Preprint

21 July 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.chao-dyn/9707019

Abstract

Helicity transfer in a shell model of turbulence is investigated. We show that a Reynolds-independent helicity flux is present in the model when the large scale forcing breaks inversion symmetry. The equivalent in Shell Models of the ``2/15 law'', obtained from helicity conservation in Navier-Stokes eqs., is derived and tested. The odd part of helicity flux statistic is found to be dominated by a few very intense events. In a particular model, we calculate analytically leading and sub-leading contribution to the scaling of triple velocity correlation.

Keywords

ANALYTICALLY LEADING
MODEL OF TURBULENCE
HELICITY TRANSFER
BREAKS INVERSION
MODELS HELICITY
INTENSE EVENTS
NAVIER STOKES
HELICITY FLUX
TURBULENT

All Related Versions

Version 1, 1997-07-21, ArXiv
Version 1, 1998-03-30, ArXiv (Unconfirmed version)
Published version: Physical Review E, 57 (3), R2515.

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