Nonlinear dynamo in a short Taylor-Couette setup
Numerical Analysis
2015-06-04 v1 Fluid Dynamics
Abstract
It is numerically demonstrated by means of a magnetohydrodynamics code that a short Taylor-Couette setup with a body force can sustain dynamo action. The magnetic threshold is comparable to what is usually obtained in spherical geometries. The linear dynamo is characterized by a rotating equatorial dipole. The nonlinear regime is characterized by fluctuating kinetic and magnetic energies and a tilted dipole whose axial component exhibits aperiodic reversals during the time evolution. These numerical evidences of dynamo action in a short Taylor-Couette setup may be useful for developing an experimental device.
Cite
@article{arxiv.1204.0555,
title = {Nonlinear dynamo in a short Taylor-Couette setup},
author = {C. Nore and J. -L. Guermond and R. Laguerre and J. Leorat and F. Luddens},
journal= {arXiv preprint arXiv:1204.0555},
year = {2015}
}