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astro-ph1998
The influence of geometry and topology on axisymmetric mean-field dynamos
E. Covas, R. Tavakol, A. Tworkowski +3
We study the changes in the dynamical behaviour of axisymmetric spherical mean-field dynamo models produced by changes in their geometry and topology, by considering a two paramete…
astro-ph1998
Mean Field Dynamos with Algebraic and Dynamic alpha-Quenchings
A. Tworkowski, E. Covas, R. Tavakol +1
Calculations for mean field dynamo models (in both full spheres and spherical shells), with both algebraic and dynamic --quenchings, show qualitative as well as quantitative dif…
chao-dyn1998
In-out intermittency in PDE and ODE models of axisymmetric mean-field dynamos
Eurico Covas, Reza Tavakol, Peter Ashwin +2
Employing some recent results in dynamics of systems with invariant subspaces we find evidence in both truncated and full axisymmetric mean-field dynamo models of a recently discov…