Numéro
J. Phys. IV France
Volume 08, Numéro PR6, October 1998
International Conference on Disorder and Chaos in honour of Giovanni Paladin
Page(s) Pr6-131 - Pr6-137
DOI https://doi.org/10.1051/jp4:1998618
International Conference on Disorder and Chaos in honour of Giovanni Paladin

J. Phys. IV France 08 (1998) Pr6-131-Pr6-137

DOI: 10.1051/jp4:1998618

Helicity advection in turbulent models

L. Biferale1, 2, D. Pierotti3 and F. Toschi2, 4

1  Dipartimento di Fisica, Università di Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy
2  Istituto Nazionale di Fisica della Materia, Unità di Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy
3  Department of Chemical Physics, Weizmann Institute of Science, 76100 Rehovot, Israel
4  Dipartimento di Fisica, Università di Pisa, piazza Torricelli 2, 56126 Pisa, Italy


Abstract
Helicity transfer in a shell model of turbulence is investigated. In particular, we study the scaling behavior of helicity transfer in a dynamical model of turbulence lacking inversion symmetry. We present some phenomenological and numerical support to the idea that Helicity becomes -at scale small enough- a passively-advected quantity.



© EDP Sciences 1998