Abstract
Gouy and Larmor were the first to propose, in the 1900’s, that magnetic fields can originate in convecting conducting fluids (Sect. 1.7): given a seed magnetic field, fluid motion can give rise to a v × B field that generates an aiding magnetic field: there is positive feedback. Because of the complexity of the phenomena, Bullard (1955) suggested that a self-excited Faraday disk could be used as a model. Even though the rotating disk bears little resemblance to a convecting fluid, the model proves to be useful, if analyzed correctly.1
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
P. Lorrain, The disk-dynamo model for natural dynamos, Physica Scripta 52, 349–352 (1995).
Rights and permissions
Copyright information
© 2006 Springer Science+Business Media, LLC
About this chapter
Cite this chapter
(2006). Case Study: The Disk Dynamo Model for Natural Dynamos. In: Magneto-Fluid Dynamics. Astronomy and Astrophysics Library. Springer, New York, NY. https://doi.org/10.1007/978-0-387-47290-4_10
Download citation
DOI: https://doi.org/10.1007/978-0-387-47290-4_10
Publisher Name: Springer, New York, NY
Print ISBN: 978-0-387-33542-1
Online ISBN: 978-0-387-47290-4
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)