αω-Dynamos and Taylor's constraint
- 1 December 1988
- journal article
- research article
- Published by Taylor & Francis in Geophysical & Astrophysical Fluid Dynamics
- Vol. 44 (1-4) , 117-139
- https://doi.org/10.1080/03091928808208881
Abstract
Plane layer αω-dynamo models are investigated. Travelling wave solutions are found: two critical dynamo numbers are shown to exist. At the first, D c, dynamo action becomes possible. As D is increased above D c, a regime is entered where core-mantle coupling is an essential part of the problem. At a second critical dynamo number, D T, Taylor's constraint is satisfied. As D is raised beyond this value, nonlinear inviscid ageostrophic solutions satisfying Taylor's constraint have been computed.Keywords
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