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Sunday, July 26, 2020 | History

4 edition of Mean-field magnetohydrodynamics and dynamo theory found in the catalog.

Mean-field magnetohydrodynamics and dynamo theory

Krause, F.

Mean-field magnetohydrodynamics and dynamo theory

by Krause, F.

  • 317 Want to read
  • 7 Currently reading

Published by Pergamon Press in Oxford, New York .
Written in English

    Subjects:
  • Magnetohydrodynamics.,
  • Dynamo theory (Cosmic physics)

  • Edition Notes

    Statementby F. Krause and K-H Rädler.
    ContributionsRädler, K. H., joint author.
    Classifications
    LC ClassificationsQC809.M3 K72 1980
    The Physical Object
    Pagination271 p. :
    Number of Pages271
    ID Numbers
    Open LibraryOL4426201M
    ISBN 100080250416
    LC Control Number79042947

    The generation of large scale magnetic fields by small scale turbulent motions is reviewed in “Mean-field magnetohydrodynamics and dynamo theory” by Krause and Rädler 8. The problem of “fast dynamos ” in the limit of large magnetic Reynolds number is studied by Childress and Gilbert in “Stretch, twist, fold: the fast dynamo ” 9. The first part—two thirds of the book—covers the fundamentals of magnetohydrodynamics (MHD), heavily weighted towards incompressible flows (correctly, in my opinion; the aerodynamic, compressible applications have largely not panned out) and terrestrial applications. In this part, in a pleasing, colloquial style that is appropriately rigorous, as called for by the material, the author.

      Buy Self-Exciting Fluid Dynamos (Cambridge Texts in Applied Mathematics) by Moffatt, Keith, Dormy, Emmanuel (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders. Magnetohydrodynamics of the Sun is a completely new up-to-date rewrite from scratch of the book Solar Magnetohydrodynamics, taking account of enormous advances in understanding since that date. It describes the subtle and complex interaction between the Sun's plasma atmosphere and its magnetic field, which is responsible for many.

      The isospectrality problem is studied for the operator of the spherical hydromagnetic α is shown that this operator is formally pseudo-Hermitian (J-symmetric) and lives in a Krein on the J-symmetry, an operator intertwining Ansatz with first-order differential intertwining operators is tested for its compatibility with the structure of the α 2-dynamo operator matrix. A transport equation for the turbulent residual helicity is studied for the self-consistent determination of the alpha dynamo effect. For this purpose, a simplified method for analyzing transport effects on mean-field magnetohydrodynamics is presented.


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Mean-field magnetohydrodynamics and dynamo theory by Krause, F. Download PDF EPUB FB2

Buy Mean-Field Magnetohydrodynamics and Dynamo Theory on FREE SHIPPING on qualified orders Mean-Field Magnetohydrodynamics and Dynamo Theory: Krause, F.: : BooksCited by: Mean-Field Magnetohydrodynamics and Dynamo Theory provides a systematic introduction to mean-field magnetohydrodynamics and the dynamo theory, along with the results achieved.

Description. 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 Edition: 1.

Mean-field magnetohydrodynamics and dynamo theory - NASA/ADS. The book discussed is intended to give a systematic introduction Mean-field magnetohydrodynamics and dynamo theory book mean-field magnetohydrodynamics and the dynamo theory which is based on it, and to provide a survey of the results achieved.

Basic ideas of mean-field electrodynamics are considered along with the elementary treatment of a simple example, general Cited by: adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: SAO/NASA Astrophysics Data System (ADS) Title: Book-Review - Mean-Field Magnetohydrodynamics and Dynamo Theory Authors: Krause, T., Radler, K.

H., & Roberts, P. About this book Magnetohydrodynamics (MHD) studies the interaction between the flow of an electrically conducting fluid and magnetic fields.

It involves such diverse topics as the evolution and dynamics of astrophysical objects, thermonuclear fusion, metallurgy. This state-of-the-art book aims at revising the evolution of ideas in various branches of magnetohydrodynamics (astrophysics, earth and solar dynamos, plasmas, MHD turbulence and liquid metals) and reviews current trends and challenges.

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 magnetic eld B = (Bp;Bt) has two parts: the poloidal component Bp = r A, and the toroidal component Bt, where A is the vector potential of the magnetic eld.

The principal point of the mean- eld dynamo theory is the separation of the physical elds onto the large- and small-scale counterparts.

Part of the Fluid Mechanics And Its Applications book series (FMIA, volume 80) Mean-field dynamo theory has proved to be a useful tool for understanding the generation of magnetic fields in the Earth and the Sun, in stellar bodies, and even in galaxies.

It provides a basis for the elaboration of detailed dynamo models of these objects. Abstract Mean-field theory describes magnetohydrodynamic processes leading to large-scale magnetic fields in various cosmic objects.

In this study magnetoconvection and dynamo processes in a rotating spherical shell are considered. Mean fields are defined by azimuthal averaging. Mean-field magnetohydrodynamics and dynamo theory. Oxford ; New York: Pergamon Press, © (OCoLC) Document Type: Book: All Authors / Contributors: F Krause; K H Rädler.

Book Description Although the origin of Earth's and other celestial bodies' magnetic fields remains unknown, we do know that the motion of electrically conducting fluids generates and maintains these fields, forming the basis of magnetohydrodynamics (MHD) and, to a larger extent, dynamo theory.

Mean-Field Magnetohydrodynamics Theory Parker's physical idea was that the net effect of averaging many small-scale convective motions is to produce the large-scale electric field (αB ϕ) in Eq.

() and so allow regeneration of the poloidal field. 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. 1 Review Magnetohydrodynamics (MHD) studies the interaction between the flow of an electrically conducting fluid and magnetic fields.

It involves such diverse topics as the evolution and dynamics 5/5(1). Mean-Field Magnetohydrodynamics and Dynamo Theory by F.

Krause; K.-H. Rädler and Publisher Pergamon. Save up to 80% by choosing the eTextbook option for ISBN:The print version of this textbook is ISBN:Turbulent magnetofluids appear in various geophysical and astrophysical contexts, in phenomena associated with planets, stars, galaxies and the universe itself.

In many cases, large-scale magnetic fields are observed, though a better knowledge of magnetofluid turbulence is needed to more fully understand the dynamo processes that produce them.

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.

The book discussed is intended to give a systematic introduction to mean-field magnetohydrodynamics and the dynamo theory which is based on. Recent advances in mean-field theory are reviewed and applications to the Sun, late-type stars, accretion disks, galaxies and the early Universe are discussed.

We focus particularly on aspects of spatio-temporal non-locality, which provided some of the main new qualitative and quantitative insights that emerged from applying the test-field.homopolar disc dynamo. This paper outlines and briefly describes the guiding principles of Dynamo theory using the framework of Magnetohydrodynamics.

In the study of Dynamo theory, two important models, namely Kinematic and Turbulent [2], have emerged quite helpful in the understanding of this complex phenomenon. A discussion on both models is.