Chaotic magnetic field reversals in turbulent dynamos
Fluid Dynamics
2015-05-13 v1
Abstract
We present direct numerical simulations of reversals of the magnetic field generated by swirling flows in a spherical domain. In agreement with a recent model, we observe that coupling dipolar and quadrupolar magnetic modes by an asymmetric forcing of the flow generates field reversals. In addition, we show that this mechanism strongly depends on the value of the magnetic Prandtl number.
Cite
@article{arxiv.0904.3343,
title = {Chaotic magnetic field reversals in turbulent dynamos},
author = {Christophe Gissinger and Emmanuel Dormy and Stephan Fauve},
journal= {arXiv preprint arXiv:0904.3343},
year = {2015}
}
Comments
4 pages, 5 figures