Published 2006
| Version v1
Journal article
Magnetic field transport and kinematic dynamo effect: a Lagrangian interpretation
- Creators
- Celani, Antonio
- Mazzino, Andrea
- Vincenzi, D.
- Others:
- Institut Non Linéaire de Nice Sophia-Antipolis (INLN) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)
- Dipartimento di Fisica ; Università degli studi di Genova = University of Genoa (UniGe)
- Istituto Nazionale di Fisica Nucleare (INFN) ; Istituto Nazionale di Fisica Nucleare (INFN)
- Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS) ; Max-Planck-Gesellschaft
- Laboratory of Atomic and Solid State Physics [Ithaca] (LASSP) ; Cornell University [New York]
Description
The growth of magnetic fluctuations in the inertial range of turbulence is investigated in terms of fluid particle dynamics. The existence of dynamo effect is related to the time behaviour of the correlations between tangent vectors evolving along Lagrangian trajectories. In the presence of dynamo effect, the correlations between tangent vectors grow exponentially in time; in the absence of dynamo effect they decay as power laws. The above behaviours are intimately related to statistical conservation laws for the Lagrangian dynamics
Additional details
- URL
- https://hal.archives-ouvertes.fr/hal-00015292
- URN
- urn:oai:HAL:hal-00015292v1
- Origin repository
- UNICA