Turbulent Diffusion of Lines and Circulations

Details Turbulent Diffusion of Lines and Circulations Turbulent Diffusion of Lines and Circulations

2007-04-02

arxiv.org/abs/0704.0263v1

Physics

Fluid Dynamics

13 pages; no figures

Scientific paper

10.1016/j.physleta.2007.04.054

We study material lines and passive vectors in a model of turbulent flow at infinite-Reynolds number, the Kraichnan-Kazantsev ensemble of velocities that are white-noise in time and rough (Hoelder continuous) in space. It is argued that the phenomenon of ``spontaneous stochasticity'' generalizes to material lines and that conservation of circulations generalizes to a ``martingale property'' of the stochastic process of lines.

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