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Author: Loukas Vlahos Publisher: Springer ISBN: 3642002102 Category : Science Languages : en Pages : 332
Book Description
Over the years, many leading European graduate schools in the field of astrophysical and space plasmas have operated within the framework of the research network, "Theory, Observations, and Simulations in Turbulence in Space Plasmas." This text is a set of lectures and tutorial reviews culled from the relevant work of all those schools. It emphasizes applications on solar coronae, solar flares, and the solar wind. In bridging the gap between standard textbook material and state-of-the-art research, this text offers a broad flavor to postgraduate and postdoctoral students just coming to the field. And because of its unique mix, it will also be useful to lecturers looking for advanced teaching material for their seminars and courses.
Author: Loukas Vlahos Publisher: Springer ISBN: 3642002102 Category : Science Languages : en Pages : 332
Book Description
Over the years, many leading European graduate schools in the field of astrophysical and space plasmas have operated within the framework of the research network, "Theory, Observations, and Simulations in Turbulence in Space Plasmas." This text is a set of lectures and tutorial reviews culled from the relevant work of all those schools. It emphasizes applications on solar coronae, solar flares, and the solar wind. In bridging the gap between standard textbook material and state-of-the-art research, this text offers a broad flavor to postgraduate and postdoctoral students just coming to the field. And because of its unique mix, it will also be useful to lecturers looking for advanced teaching material for their seminars and courses.
Author: Yasuhito Narita Publisher: Springer Science & Business Media ISBN: 364225666X Category : Science Languages : en Pages : 108
Book Description
Dynamics of astrophysical systems is often described by plasma physics, yet understanding the nature of plasma turbulence remains as a challenge in physics in both theories and experiments. This book is an up-to-date summary and review of recent results in research on waves and turbulence in near-Earth space plasma turbulence, obtained by Cluster, the multi-spacecraft mission. Spatial and temporal structures of solar wind turbulence as well as its interaction with the bow shock ahead of the Earth are presented using Cluster data. The book presents (1) historical developments, (2) theoretical background of plasma physics, turbulence theories, and the plasma physical picture of the solar system, (3) analysis methods for multi-spacecraft data, (4) results of Cluster data analysis, and (5) impacts on astrophysics and Earth sciences.
Author: Loukas Vlahos Publisher: Springer Science & Business Media ISBN: 3642002099 Category : Science Languages : en Pages : 332
Book Description
Over the years, many leading European graduate schools in the field of astrophysical and space plasmas have operated within the framework of the research network, "Theory, Observations, and Simulations in Turbulence in Space Plasmas." This text is a set of lectures and tutorial reviews culled from the relevant work of all those schools. It emphasizes applications on solar coronae, solar flares, and the solar wind. In bridging the gap between standard textbook material and state-of-the-art research, this text offers a broad flavor to postgraduate and postdoctoral students just coming to the field. And because of its unique mix, it will also be useful to lecturers looking for advanced teaching material for their seminars and courses.
Author: Sergei S. Molokov Publisher: Springer Science & Business Media ISBN: 1402048335 Category : Science Languages : en Pages : 408
Book Description
This book revises the evolution of ideas in various branches of magnetohydrodynamics (astrophysics, earth and solar dynamos, pinch, MHD turbulence and liquid metals) and reviews current trends and challenges. Uniquely, it contains the review articles on the development of the subject by pioneers in the field as well as leading experts, not just in one, but in various branches of magnetohydrodynamics, such as liquid metals, astrophysics, dynamo and pinch.
Author: Yan Yang Publisher: Springer ISBN: 9811381496 Category : Science Languages : en Pages : 134
Book Description
This book revisits the long-standing puzzle of cross-scale energy transfer and dissipation in plasma turbulence and introduces new perspectives based on both magnetohydrodynamic (MHD) and Vlasov models. The classical energy cascade scenario is key in explaining the heating of corona and solar wind. By employing a high-resolution hybrid (compact finite difference & WENO) scheme, the book studies the features of compressible MHD cascade in detail, for example, in order to approximate a real plasma cascade as “Kolmogorov-like” and to understand features that go beyond the usual simplified theories based on incompressible models. When approaching kinetic scales where plasma effects must be considered, it uses an elementary analysis of the Vlasov–Maxwell equations to help identify the channels through which energy transfer must be dissipated. In addition, it shows that the pressure–strain interaction is of great significance in producing internal energy. This analysis, in contrast to many other recent studies, does not make assumptions about wave-modes, instability or other specific mechanisms responsible for the dynamics – the results are direct consequences of the Vlasov–Maxwell system of equations. This is an important step toward understanding dissipation in turbulent collisionless plasma in space and astrophysics.
Author: Patrick H. Diamond Publisher: Cambridge University Press ISBN: 1139489364 Category : Science Languages : en Pages : 435
Book Description
Developing the physical kinetics of plasma turbulence through a focus on quasi-particle models and dynamics, this volume will interest researchers and graduate students in plasma physics. It discusses essential physics concepts and theoretical methods for weak and strong fluid and phase space turbulence in plasma systems far from equilibrium.
Author: Hans Pécseli Publisher: ISBN: 9780750312530 Category : SCIENCE Languages : en Pages : 0
Book Description
"Low Frequency Waves and Turbulence in Magnetized Laboratory Plasmas and in the Ionosphere was developed from courses taught by the author at the universities of Oslo and Tromso in Norway. Suitable for undergraduates, graduate students and researchers, the first part of the book is devoted to discussing some relevant plasma instabilities and the free energy that drives them. In the second part, the more advanced topics of nonlinear models and the interactions of many modes are discussed. Theoretical tools available for turbulence modelling are also outlined. The book summarizes a number of studies of low-frequency plasma waves, drift waves in particular, from laboratory and space experiments."--Prové de l'editor.
Author: Supratik Banerjee Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
My thesis work is principally dedicated in understanding the role of compressibility in lowfrequency turbulence of space plasmas (the solar wind, magnetospheric plasma etc.) and astrophysical plasmas (interstellar molecular cloud, the core of a star etc.). Three new exact relations have been derived analytically in the framework of isothermal and polytropic hydrodynamic turbulence and also for an isothermal MHD plasma. By using these relations, various universal scalingproperties of compressible turbulence have been investigated. In addition, plausible phenomenologieshave been proposed in order to theoretically reproduce different power laws for energy power spectra which had been obtained in previous numerical simulations of compressible turbulence. A semi-qualitativedistinction between sub-sonic and supersonic regime of turbulence is hence concluded. In the second part, an analysis using THEMIS spacecraft data is also performed in a view to explainingthe effect of the compressibility in the turbulence of the fast solar wind. A remarkable smooth scalingin comparison with incompressible law is obtained for several intervals of fast solar wind. The corresponding turbulent energy flux is also found to be sufficient to explain the anomalous heating of fast solar wind.
Author: Roberto Bruno Publisher: Springer ISBN: 3319434403 Category : Science Languages : en Pages : 270
Book Description
This book provides an overview of solar wind turbulence from both the theoretical and observational perspective. It argues that the interplanetary medium offers the best opportunity to directly study turbulent fluctuations in collisionless plasmas. In fact, during expansion, the solar wind evolves towards a state characterized by large-amplitude fluctuations in all observed parameters, which resembles, at least at large scales, the well-known hydrodynamic turbulence. This text starts with historical references to past observations and experiments on turbulent flows. It then introduces the Navier-Stokes equations for a magnetized plasma whose low-frequency turbulence evolution is described within the framework of the MHD approximation. It also considers the scaling of plasma and magnetic field fluctuations and the study of nonlinear energy cascades within the same framework. It reports observations of turbulence in the ecliptic and at high latitude, treating Alfvénic and compressive fluctuations separately in order to explain the transport of mass, momentum and energy during the expansion. Further, existing models are compared with direct observations in the heliosphere. The problem of self-similar and anomalous fluctuations in the solar wind is then addressed using tools provided by dynamical system theory and discussed on the basis of available models and observations. The book highlights observations of Yaglom’s law in solar wind turbulence, which is one of the most important findings in fully developed turbulence and directly related to the long-lasting and still unsolved problem of solar wind plasma heating. Lastly, it includes a short chapter dedicated to the kinetic range of fluctuations, which has recently been receiving more attention from the space plasma community, since this is inherently related to turbulent energy dissipation and consequent plasma heating. It particularly focuses on the nature and role of the fluctuations populating this frequency range, and discusses several model predictions and recent observational findings in this context.
Author: Bruce Scott Publisher: Iop Plasma Physics ISBN: 9780750338530 Category : Science Languages : en Pages : 190
Book Description
Ever since the first observations of turbulent fluctuations in laboratory plasma experiments in the years around 1980, turbulence in magnetised plasmas has been a subject of vigorous interest in the field of plasma physics and magnetic confinement. The second of a two-volume set, this book begins with a review of the concepts behind magnetised plasma turbulence as covered in Volume One. After covering the effects of temperature dynamics, especially heat flux inertia, the rest of the first half reviews classical field theory in the necessary language, then builds the gyrokinetic and gyrofluid theory in a systematic and self-consistent manner, with special emphasis on energetic consistency. Gyrofluid turbulence in various flavours in a magnetised plasma is then covered, with control cases and energetic analysis. Familiar magnetohydrodynamic instabilities are reproduced in gyrofluid language, and then turbulence in a flow layer, current channel, pressure layer, or all three, is covered. A reprise of the theory in terms of a gauge transform with functional Lie-Poisson bracket structure closes the volume. Key Features Written by a world-leading expert in magnetised plasma turbulence Fills a long-standing gap in the plasma physics literature First unified book on gyrokinetic and gyrofluid theory and turbulence Includes complete derivations of the fundamental concepts