Self-Exciting Fluid Dynamos
Self-Exciting Fluid Dynamos

Author: Keith Moffatt

Publisher: Cambridge University Press

Published: 2019-04-25

Total Pages: 540

ISBN-13: 1108636837

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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.

Self-Exciting Fluid Dynamos
Self-Exciting Fluid Dynamos

Author: Keith Moffatt

Publisher: Cambridge University Press

Published: 2019-04-25

Total Pages: 539

ISBN-13: 1107065879

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

Nature's Third Cycle
Nature's Third Cycle

Author: Arnab Rai Choudhuri

Publisher: Oxford University Press, USA

Published: 2015

Total Pages: 295

ISBN-13: 0199674752

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The 11-year cycle of sunspots is one of the most intriguing natural cycles known to mankind. This book explores the fascinating science behind these phenomena and gives an insider's view of the history of the field.

An Introduction to Magnetohydrodynamics
An Introduction to Magnetohydrodynamics

Author: P. A. Davidson

Publisher: Cambridge University Press

Published: 2001-03-05

Total Pages: 456

ISBN-13: 9780521794879

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This book is an introductory text on magnetohydrodynamics (MHD) - the study of the interaction of magnetic fields and conducting fluids.

Magneto-Fluid Dynamics
Magneto-Fluid Dynamics

Author: Paul Lorrain

Publisher: Springer Science & Business Media

Published: 2007-10-31

Total Pages: 338

ISBN-13: 0387472908

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This book provides an understanding of the physics at work in sunspots and solar coronal loops, and offers a new approach to Magneto-Fluid-Dynamics (or Magneto-Hydro-Dynamics).The book stresses the use of electric currents in Magneto-Fluid-Dynamics. As a rule, authors discuss magnetic field lines without referring to the required electric currents. It also stresses the importance of electric space charges inside conductors that move in magnetic fields.

Lectures on Solar and Planetary Dynamos
Lectures on Solar and Planetary Dynamos

Author: M. R. E. Proctor

Publisher: Cambridge University Press

Published: 1994-12-08

Total Pages: 396

ISBN-13: 9780521467049

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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.

Fluid Mechanics of Planets and Stars
Fluid Mechanics of Planets and Stars

Author: Michael Le Bars

Publisher: Springer

Published: 2019-06-29

Total Pages: 247

ISBN-13: 3030220745

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This book explores the dynamics of planetary and stellar fluid layers, including atmospheres, oceans, iron cores, and convective and radiative zones in stars, describing the different theoretical, computational and experimental methods used to study these problems in fluid mechanics, including the advantages and limitations of each method for different problems. This scientific domain is by nature interdisciplinary and multi-method, but while much effort has been devoted to solving open questions within the various fields of mechanics, applied mathematics, physics, earth sciences and astrophysics, and while much progress has been made within each domain using theoretical, numerical and experimental approaches, cross-fertilizations have remained marginal. Going beyond the state of the art, the book provides readers with a global introduction and an up-to-date overview of relevant studies, fully addressing the wide range of disciplines and methods involved. The content builds on the CISM course “Fluid mechanics of planets and stars”, held in April 2018, which was part of the research project FLUDYCO, supported by the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program.

Mean-Field Magnetohydrodynamics and Dynamo Theory
Mean-Field Magnetohydrodynamics and Dynamo Theory

Author: F. Krause

Publisher: Elsevier

Published: 2016-01-22

Total Pages: 272

ISBN-13: 1483158063

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Mean-Field Magnetohydrodynamics and Dynamo Theory provides a systematic introduction to mean-field magnetohydrodynamics and the dynamo theory, along with the results achieved. Topics covered include turbulence and large-scale structures; general properties of the turbulent electromotive force; homogeneity, isotropy, and mirror symmetry of turbulent fields; and turbulent electromotive force in the case of non-vanishing mean flow. The turbulent electromotive force in the case of rotational mean motion is also considered. This book is comprised of 17 chapters and opens with an overview of the general concept of mean-field magnetohydrodynamics, followed by a discussion on the back-reaction of the magnetic field on motion; the structure of the turbulent electromotive force; homogeneous and two-scale turbulence; turbulent electromotive force in the case of rotational mean motion; and the dynamo problem of magnetohydrodynamics. The dynamo theory, which is based on mean-field magnetohydrodynamics, is explained and its applications to cosmical objects are described. The remaining chapters explore toroidal and poloidal vector fields; a simple model of an a-effect dynamo; and spherical models of turbulent dynamos as suggested by cosmical bodies. This monograph will be of interest to physicists.

Turbulence in Rotating, Stratified and Electrically Conducting Fluids
Turbulence in Rotating, Stratified and Electrically Conducting Fluids

Author: P. A. Davidson

Publisher: Cambridge University Press

Published: 2013-09-12

Total Pages: 701

ISBN-13: 1107434343

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There are two recurring themes in astrophysical and geophysical fluid mechanics: waves and turbulence. This book investigates how turbulence responds to rotation, stratification or magnetic fields, identifying common themes, where they exist, as well as the essential differences which inevitably arise between different classes of flow. The discussion is developed from first principles, making the book suitable for graduate students as well as professional researchers. The author focuses first on the fundamentals and then progresses to such topics as the atmospheric boundary layer, turbulence in the upper atmosphere, turbulence in the core of the earth, zonal winds in the giant planets, turbulence within the interior of the sun, the solar wind, and turbulent flows in accretion discs. The book will appeal to engineers, geophysicists, astrophysicists and applied mathematicians who are interested in naturally occurring turbulent flows.