Self-Exciting Fluid Dynamos
Exploring the origins and evolution of magnetic fields in planets, stars and galaxies, this book gives a basic introduction to magnetohydrodynamics and surveys the observational data, with particular focus on geomagnetism and solar magnetism. Pioneering laboratory experiments that seek to replicate particular aspects of fluid dynamo action are also described. The authors provide a complete treatment of laminar dynamo theory, and of the mean-field electrodynamics that incorporates the effects of random waves and turbulence. Both dynamo theory and its counterpart, the theory of magnetic relaxation, are covered. Topological constraints associated with conservation of magnetic helicity are thoroughly explored and major challenges are addressed in areas such as fast-dynamo theory, accretion-disc dynamo theory and the theory of magnetostrophic turbulence. The book is aimed at graduate-level students in mathematics, physics, Earth sciences and astrophysics, and will be a valuable resource for researchers at all levels.Read more
- Includes the most recent theoretical and experimental developments in the field
- Provides an ideal introduction for students who are new to dynamo theory
- Surveys observations on planetary and stellar magnetism, giving motivation for the theoretical developments
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- Date Published: April 2019
- format: Adobe eBook Reader
- isbn: 9781108636834
- contains: 215 b/w illus. 30 colour illus. 5 tables
- availability: This ISBN is for an eBook version which is distributed on our behalf by a third party.
Table of Contents
Part I. Basic Theory and Observations:
2. Magnetokinematic preliminaries
3. Advection, distortion and diffusion
4. The magnetic field of the Earth and planets
5. Astrophysical magnetic fields
Part II. Foundations of Dynamo Theory:
6. Laminar dynamo theory
7. Mean-field electrodynamics
8. Nearly axisymmetric dynamos
9. Solution of the mean-field equations
10. The fast dynamo
Part III. Dynamic Aspects of Dynamo Action:
11. Low-dimensional models of the geodynamo
12. Dynamic equilibration
13. The geodynamo: instabilities and bifurcations
14. Astrophysical dynamic models
15. Helical turbulence
16. Magnetic relaxation under topological constraints
17. Magnetic relaxation in a low-β plasma
Appendix. Orthogonal curvilinear coordinates
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