Krzysztof A. Mizerski

Non-equilibrium Hydromagnetic Dynamos (eBook, ePUB)

• Format: ePub

Produktbeschreibung

The most important aim of this book is to explain and emphasize the versatile role of non-equilibrium effects in turbulent hydromagnetic dynamos. The book gathers the knowledge and explains the hydromagnetic dynamo effect in non-equilibrium turbulence, which operates even under neglection of electrical resistivity of the fluid, and sheds light on its different dynamical aspects. The described dynamo mechanism is operative and therefore crucial in the evolution of high conductivity plasmas. Moreover, the physical picture of the non-equilibrium dynamo effect brings in a possible natural interpretation of the phenomenon of magnetic excursions and reversals in natural systems such as the Earth's core, as described in chapter 3. Various mathematical methods, including the renormalization group theory are utilized in order to provide a concise and complete description of the non-equilibrium dynamo effect, not yet widely realized within the geophysical/astrophysical and fluid dynamics communities, however, as demonstrated, very significant under certain dynamical conditions. In addition, the book emphasizes the variety of distinct dynamical effects that may lead to mean-field dynamo, especially in fully developed, strongly nonlinear turbulence and through derivation of exact evolution laws for the magnetic, kinetic, cross and current helicities demonstrates that there is clearly no contradiction between the amplification of the mean-field by turbulent flow (the large-scale dynamo effect) and conservation of the total magnetic helicity in absence of diffusion.

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Produktdetails

• Verlag: Institute of Physics Publishing
• Erscheinungstermin: 20. Dezember 2023
• Englisch
• ISBN-13: 9780750363624
• Artikelnr.: 69691397

Autorenporträt

Krzysztof Mizerski is an Associate Professor at the Institute of Geophysics of the Polish Academy of Sciences. He has experience in theoretical fluid mechanics in particular the theory of the hydromagnetic dynamo and stratified convection. All of his works have been concerned with analytic approaches to hydrodynamic and magnetohydrodynamic problems supplied by numerical models. These involved investigations of singular structures in boundary layers, linear and nonlinear stability theory and description of fully developed, turbulent stratified convection. One of the main topics of the research conducted by Krzysztof Mizerski is the description of large-scale hydromagnetic dynamos in the fully nonlinear regime, in particular via the renormalization group method. His most recent works were dedicated to creation of a consistent dynamical picture of the hydromagnetic dynamo process induced by nonequilibrium effects in magnetohydrodynamic turbulence. He is an author of a textbook on Foundations of convection with density stratification published in 2021 by Springer, Cham.