Busse, F.H. and Simitev, R. (2006) Parameter dependences of convection-driven dynamos in rotating spherical fluid shells. Geophysical and Astrophysical Fluid Dynamics, 100(4-5), pp. 341-361. (doi: 10.1080/03091920600784873)
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Publisher's URL: http://dx.doi.org/10.1080/03091920600784873
Abstract
For the understanding of planetary and stellar dynamos, an overview of the major parameter dependences of convection driven dynamos in rotating spherical fluid shells is desirable. Although the computationally accessible parameter space is limited, earlier work is extended with emphasis on higher Prandtl numbers and uniform heat flux condition at the outer boundary. The transition from dynamos dominated by non-axisymmetric components of the magnetic field to those dominated by the axisymmetric components depends on the magnetic Prandtl number as well as on the ordinary Prandtl number for higher values of the rotation parameter τ. The dependence of the transition on the latter parameter is also discussed. A variety of oscillating dynamos is presented and interpreted in terms of dynamo waves, standing oscillation or modified relaxation oscillations.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Simitev, Professor Radostin |
Authors: | Busse, F.H., and Simitev, R. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Mathematics and Statistics > Mathematics |
Journal Name: | Geophysical and Astrophysical Fluid Dynamics |
ISSN: | 0309-1929 |
ISSN (Online): | 1029-0419 |
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