# Dynamos

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### Lectures on Solar and Planetary Dynamos

Author | : M. R. E. Proctor,A. D. Gilbert |

Publsiher | : Cambridge University Press |

Total Pages | : 396 |

Release | : 1994-12-08 |

Genre | : Mathematics |

ISBN | : 0521467047 |

**Download Lectures on Solar and Planetary Dynamos Book in PDF, Epub and Kindle**

Comprised of lectures for an intensive course held at the Newton Institute in Cambridge, as part of a NATO Advanced Study Institute, the topics covered within this volume include planetary and solar dynamos, fast dynamos, and the use of symmetry principles to derive evolution equations.

### Dynamos

Author | : Anonim |

Publsiher | : Elsevier |

Total Pages | : 497 |

Release | : 2011-07-29 |

Genre | : Science |

ISBN | : 9780080560533 |

**Download Dynamos Book in PDF, Epub and Kindle**

Dynamos is a collection of lectures given in July 2007 at the Les Houches Summer School on "Dynamos". Provides a pedagogical introduction to topics in Dynamos Addresses each topic from the basis to the most recent developments Covers the lectures by internationally-renowned and leading experts

### Advances in Nonlinear Dynamos

Author | : Antonio Ferriz-Mas,Manuel Nunez |

Publsiher | : CRC Press |

Total Pages | : 395 |

Release | : 2019-04-24 |

Genre | : Science |

ISBN | : 9781134443918 |

**Download Advances in Nonlinear Dynamos Book in PDF, Epub and Kindle**

Nonlinear dynamo theory is central to understanding the magnetic structures of planets, stars and galaxies. In chapters contributed by some of the leading scientists in the field, this text explores some of the recent advances in the field. Both kinetic and dynamic approaches to the subject are considered, including fast dynamos, topological methods in dynamo theory, physics of the solar cycle and the fundamentals of mean field dynamo. Advances in Nonlinear Dynamos is ideal for graduate students and researchers in theoretical astrophysics and applied mathematics, particularly those interested in cosmic magnetism and related topics, such as turbulence, convection, and more general nonlinear physics.

### Solar and Stellar Dynamos

Author | : Paul Charbonneau |

Publsiher | : Springer |

Total Pages | : 240 |

Release | : 2012-11-06 |

Genre | : Science |

ISBN | : 9783642320934 |

**Download Solar and Stellar Dynamos Book in PDF, Epub and Kindle**

Astrophysical dynamos are at the heart of cosmic magnetic fields of a wide range of scales, from planets and stars to entire galaxies. This book presents a thorough, step-by-step introduction to solar and stellar dynamos. Looking first at the ultimate origin of cosmic seed magnetic fields, the antagonists of field amplification are next considered: resistive decay, flux expulsion, and flows ruled out by anti-dynamo theorems. Two kinematic flows that can act as dynamos are then studied: the Roberts cell and the CP-flow. Mean-field electrodynamics and derivation of the mean-field dynamo equations lead to the alpha Omega-dynamo, the flux transport dynamo, and dynamos based on the Babcock-Leighton mechanism. Alternatives to the mean-field theory are also presented, as are global MHD dynamo simulations. Fluctuations and grand minima in the solar cycle are discussed in terms of dynamo modulations through stochastic forcing and nonlinear effects. The book concludes with an overview of the major challenges in understanding stellar magnetic fields and their evolution in terms of various dynamo models, global MHD simulations, and fossil fields. Each chapter is accompanied by an annotated bibliography, guiding the readers to the relevant technical literature, which may lead them to carry out their own research in the field of dynamo theory.

### Self Exciting Fluid Dynamos

Author | : Keith Moffatt,Emmanuel Dormy |

Publsiher | : Cambridge University Press |

Total Pages | : 539 |

Release | : 2019-04-25 |

Genre | : Mathematics |

ISBN | : 9781107065871 |

**Download Self Exciting Fluid Dynamos Book in PDF, Epub and Kindle**

Treats the origin of magnetic fields in planets, stars and galaxies, and the manner of their evolution over time.

### Fluid Dynamics and Dynamos in Astrophysics and Geophysics

Author | : Andrew M. Soward,Christopher A. Jones,David W. Hughes,Nigel O. Weiss |

Publsiher | : CRC Press |

Total Pages | : 464 |

Release | : 2005-03-16 |

Genre | : Science |

ISBN | : 9780203017692 |

**Download Fluid Dynamics and Dynamos in Astrophysics and Geophysics Book in PDF, Epub and Kindle**

The increasing power of computer resources along with great improvements in observational data in recent years have led to some remarkable and rapid advances in astrophysical fluid dynamics. The subject spans three distinct but overlapping communities whose interests focus on (1) accretion discs and high-energy astrophysics; (2) solar, stellar, and

### Dynamo and Dynamics a Mathematical Challenge

Author | : Pascal Chossat,Dieter Armbruster,Iuliana Oprea |

Publsiher | : Springer Science & Business Media |

Total Pages | : 418 |

Release | : 2001-07-31 |

Genre | : Science |

ISBN | : 0792370694 |

**Download Dynamo and Dynamics a Mathematical Challenge Book in PDF, Epub and Kindle**

This book contains the lectures given at the workshop "Dynamo and dynamics, a mathematical challenge" held in Cargese from August 21 to 26, 2000. The workshop differed from most previous conferences on the dynamo effect in two important respects. First, it was at this international conference that the experimental observation of homogeneous fluid dynamos was first reported. Second, the conference gathered scientists from very different fields, thus showing that thepynamo problem has become an interdisciplinary subject involving not only astrophysicists and geophysicists, but also scientists working in dynamical systems theory, hydrodynamics, and numerical simulation, as well as several groups in experimental physics. This book thus reports important results on various dynamo studies in these different contexts: - Decades after the discovery of the first analytic examples of laminar fluid dynamos, the self-generation of a magnetic field by a flow ofliquid sodium has been reported by the Karlsruhe and Riga groups. Although there were no doubts concerning the self generation by the laminar Roberts-type or Ponomarenko-type flows that were used, these experiments have raised interesting questions about the influence of the turbulent fluctuations on the dynamo threshold and on the saturation level of the magnetic field.

### Stretch Twist Fold The Fast Dynamo

Author | : Stephen Childress,Andrew D. Gilbert |

Publsiher | : Springer Science & Business Media |

Total Pages | : 414 |

Release | : 1995-10-09 |

Genre | : Science |

ISBN | : 9783540602583 |

**Download Stretch Twist Fold The Fast Dynamo Book in PDF, Epub and Kindle**

The study of the magnetic fields of the Earth and Sun, as well as those of other planets, stars, and galaxies, has a long history and a rich and varied literature, including in recent years a number of review articles and books dedicated to the dynamo theories of these fields. Against this background of work, some explanation of the scope and purpose of the present monograph, and of the presentation and organization of the material, is therefore needed. Dynamo theory offers an explanation of natural magnetism as a phenomenon of magnetohydrodynamics (MHD), the dynamics governing the evolution and interaction of motions of an electrically conducting fluid and electromagnetic fields. A natural starting point for a dynamo theory assumes the fluid motion to be a given vector field, without regard for the origin of the forces which drive it. The resulting kinematic dynamo theory is, in the non-relativistic case, a linear advection-diffusion problem for the magnetic field. This kinematic theory, while far simpler than its magnetohydrodynamic counterpart, remains a formidable analytical problem since the interesting solutions lack the easiest symmetries. Much ofthe research has focused on the simplest acceptable flows and especially on cases where the smoothing effect of diffusion can be exploited. A close analog is the advection and diffusion of a scalar field by laminar flows, the diffusion being measured by an appropriate Peclet number. This work has succeeded in establishing dynamo action as an attractive candidate for astrophysical magnetism.