Remarks on some typical assumptions in dynamo theory
Fluid Dynamics
2015-03-17 v1
Abstract
Some concepts used in the theory of convection-driven dynamos in rotating spherical fluid shells are discussed. The analogy between imposed magnetic fields and those generated by dynamo action is evaluated and the role of the Elsasser number is considered. Eddy diffusivities are essential ingredients in numerical dynamo simulations, but their effects could be misleading. New aspects of the simultaneous existence of different dynamo states are described.
Keywords
Cite
@article{arxiv.1012.1506,
title = {Remarks on some typical assumptions in dynamo theory},
author = {R. D. Simitev and F. H. Busse},
journal= {arXiv preprint arXiv:1012.1506},
year = {2015}
}
Comments
Published in Geophys. Astrophys. Fluid Dyn