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Lectures on Solar and Planetary Dynamos

1994-12-08 Mathematics
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Release : 1994-12-08
Genre : Mathematics
Kind : eBook
Book Rating : 049/5 ( reviews)

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Book Synopsis Lectures on Solar and Planetary Dynamos by : M. R. E. Proctor

Download or read book Lectures on Solar and Planetary Dynamos written by M. R. E. Proctor. This book was released on 1994-12-08. Available in PDF, EPUB and Kindle. Book excerpt: 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

2011-07-29 Science
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Release : 2011-07-29
Genre : Science
Kind : eBook
Book Rating : 539/5 ( reviews)

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Book Synopsis Dynamos by :

Download or read book Dynamos written by . This book was released on 2011-07-29. Available in PDF, EPUB and Kindle. Book excerpt: 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

Solar and Planetary Dynamos

1994-01-27 Science
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Release : 1994-01-27
Genre : Science
Kind : eBook
Book Rating : 704/5 ( reviews)

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Book Synopsis Solar and Planetary Dynamos by : M. R. E. Proctor

Download or read book Solar and Planetary Dynamos written by M. R. E. Proctor. This book was released on 1994-01-27. Available in PDF, EPUB and Kindle. Book excerpt: Dynamo theory is the study of how large scale magnetic fields can arise in bodies such as the Earth, Sun, and stars. This text brings together researchers in such diverse subjects as geophysics, astronomy, and nuclear reactor technology and covers topics such as modeling of solar magnetic field generation, theoretical studies of the dynamics of the Earth's core, studies of the magnetic fields in galaxies, and papers on "fast dynamos," the study of magnetic field regeneration in fluid of very high electrical conductivity. This volume represents the most comprehensive and up-to-date record of research into the theory of dynamos and will interest students and professors of astrophysics, applied mathematics, and planetary science.

Stretch, Twist, Fold: The Fast Dynamo

2008-09-11 Science
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Release : 2008-09-11
Genre : Science
Kind : eBook
Book Rating : 784/5 ( reviews)

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Book Synopsis Stretch, Twist, Fold: The Fast Dynamo by : Stephen Childress

Download or read book Stretch, Twist, Fold: The Fast Dynamo written by Stephen Childress. This book was released on 2008-09-11. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Dynamo and Dynamics, a Mathematical Challenge

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 888/5 ( reviews)

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Book Synopsis Dynamo and Dynamics, a Mathematical Challenge by : Pascal Chossat

Download or read book Dynamo and Dynamics, a Mathematical Challenge written by Pascal Chossat. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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