fluid dynamics and dynamos in astrophysics and geophysics the fluid mechanics of astrophysics and geophysics

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Fluid Dynamics And Dynamos In Astrophysics And Geophysics

Author : Andrew M. Soward
ISBN : 0203017692
Genre : Science
File Size : 35. 40 MB
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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 galactic magnetic fields; and (3) the geodynamo, planetary magnetic fields, and associated experiments. This book grew out of a special conference sponsored by the London Mathematical Society with the support of EPSRC that brought together leading researchers in all of these areas to exchange ideas and review the status of the field. The many interesting problems addressed in this volume concern:

Topics In Geophysical Fluid Dynamics Atmospheric Dynamics Dynamo Theory And Climate Dynamics

Author : M. Ghil
ISBN : 9781461210528
Genre : Science
File Size : 33. 83 MB
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The vigorous stirring of a cup of tea gives rise, as we all know, to interesting fluid dynamical phenomena, some of which are very hard to explain. In this book our "cup of tea" contains the currents of the Earth's atmosphere, oceans, mantle, and fluid core. Our goal is to under stand the basic physical processes which are most important in describing what we observe, directly or indirectly, in these complex systems. While in many respects our understanding is measured by the ability to predict, the focus here will be on relatively simple models which can aid our physical intuition by suggesting useful mathematical methods of investiga tion. These elementary models can be viewed as part of a hierarchy of models of increasing complexity, moving toward those which might be use fully predictive. The discussion in this book will deal primarily with the Earth. Interplanetary probes of Venus, Mars, Jupiter and Saturn have revealed many exciting phenomena which bear on geophysical fluid dynamics. They have also enabled us to see the effect of changing the values of certain parameters, such as gravity and rotation rate, on geophysical flows. On the other hand, satellite observations of our own planet on a daily and hourly basis have turned it into a unique laboratory for the study of fluid motions on a scale never dreamt of before: the motion of cyclones can be observed via satellite just as wing tip vortices are studied in a wind tunnel.

Core Dynamics

Author : Peter Olson
ISBN : 9780444535771
Genre : Science
File Size : 89. 92 MB
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Treaties on Geophysics: Core Dynamics, Volume 8, provides a comprehensive review of the current state of understanding of core dynamics. The book begins by analyzing a subject of long-standing and on-going controversy: the gross energetics of the core. It then explains the important elements of dynamo theory; actual fluid motions in the core; the basic physical principles involved in thermochemical convection in the core and the basic equations governing the convection; and turbulence and the small-scale dynamics of the core. This is followed by discussions of the state of knowledge on rotation-induced core flows; the use of first-principles numerical models of self-sustaining fluid dynamos; and the behavior of polarity reversals in numerical dynamo models. The remaining chapters cover the various roles the inner core plays in core dynamics and the geodynamo; experiments that have shaped knowledge about the flows in the core that produce the geodynamo and govern its evolution; and ways the mantle can affect core dynamics, and corresponding ways the core can affect the mantle. Self-contained volume starts with an overview of the subject then explores each topic with in depth detail Extensive reference lists and cross references with other volumes to facilitate further research Full-color figures and tables support the text and aid in understanding Content suited for both the expert and non-expert

Advances In Nonlinear Dynamos

Author : Antonio Ferriz-Mas
ISBN : 0203493133
Genre : Science
File Size : 61. 13 MB
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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.

Mathematical Aspects Of Natural Dynamos

Author : Emmanuel Dormy
ISBN : 9781420055269
Genre : Science
File Size : 54. 17 MB
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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. Answering the need for a comprehensive, interdisciplinary introduction to this area, Mathematical Aspects of Natural Dynamos provides a foundation in dynamo theory before moving on to modeling aspects of natural dynamos. Bringing together eminent international contributors, the book first introduces governing equations, outlines the kinematic dynamo theory, covers nonlinear effects, including amplitude saturation and polarity reversals, and discusses fluid dynamics. After establishing this base, the book describes the Earth's magnetic field and the current understanding of its characteristics. Subsequent chapters examine other planets in our solar system and the magnetic field of stars, including the sun. The book also addresses dynamo action on the large scale of galaxies, presents modeling experiments of natural dynamos, and speculates about future research directions. After reading this well-illustrated, thorough, and unified exploration, you will be well prepared to embark on your own journey through this fascinating area of research.

Geophysical And Astrophysical Fluid Dynamics

Author :
ISBN : STANFORD:36105016781762
Genre : Fluid dynamics
File Size : 38. 17 MB
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Order And Disorder In Planetary Dynamos

Author : Willem V. R Malkus
ISBN : UCSD:31822008864118
Genre : Cosmic magnetic fields
File Size : 57. 3 MB
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Advances In Turbulence Studies

Author : Herman Branover
ISBN : 1563470187
Genre : Science
File Size : 37. 9 MB
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Large Scale Computations In Fluid Mechanics

Author : Björn Engquist
ISBN : UCAL:B4129009
Genre : Fluid mechanics
File Size : 77. 31 MB
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Covers the proceedings of an AMS-SIAM Summer Seminar on Applied Mathematics held at Scripps Institution of Oceanography in 1983, whose purpose was to bring scientists interested in computational fluid mechanics together with numerical analysts and mathematicians working in large-scale computations.

Geophysical Astrophysical Convection

Author : Peter A Fox
ISBN : 9781482282948
Genre : Science
File Size : 61. 42 MB
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Geophysical and Astrophysical Convection collects important papers from an international group of the world's foremost researchers in geophysical and astrophysical convection to present a concise overview of recent thinking in the field. Topics include: Atmospheric convection, solar and stellar convection, unsteady non-penetrative thermal convection, astrophysical convection and dynamos, dynamics of cumulus entertainment, turbulent convection: helical buoyant convection, transport phenomena, potential vorticity, rotating convective turbulence, and the modeling and simulation various types of convection and turbulence.

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