Download or read book Turbulent Heating of Plasmas written by Stanford University. Institute for Plasma Research and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Transport In Magnetized Plasmas Second Edition written by C Wendell Horton, Jr and published by #N/A. This book was released on 2017-07-21 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: For a few seconds with large machines, scientists and engineers have now created the fusion power of the stars in the laboratory and at the same time find the rich range of complex turbulent electromagnetic waves that transport the plasma confinement systems. The turbulent transport mechanisms created in the laboratory are explained in detail in the second edition of 'Turbulent Transport in Magnetized Plasmas' by Professor Horton.The principles and properties of the major plasma confinement machines are explored with basic physics to the extent currently understood. For the observational laws that are not understood — the empirical confinement laws — offering challenges to the next generation of plasma students and researchers — are explained in detail. An example, is the confinement regime — called the 'I-mode' — currently a hot topic — is explored.Numerous important problems and puzzles for the next generation of plasma scientists are explained. There is growing demand for new simulation codes utilizing the massively parallel computers with MPI and GPU methods. When the 20 billion dollar ITER machine is tested in the 2020ies, new theories and faster/smarter computer simulations running in near real-time control systems will be used to control the burning hydrogen plasmas.
Download or read book Turbulent Heating of Plasmas written by Stanford University. Institute for Plasma Research and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TURBULENT HEATING OF PLASMA BY A CURRENT written by E. K. Zavoiskii and published by . This book was released on 1969 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the results of a further study of the mechanism of the turbulent heating of plasma by a current in open and closed traps. Turbulent heating in open traps was studied using the NPR-2 and TN-5 equipment. Both devices are magnetic mirror-type systems. (Author).
Download or read book Turbulent Heating of Plasmas by Streaming Instabilities written by William E. Drummond and published by . This book was released on 1971 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the progress which has been made tward the research goal of understanding the development and nature of turbulence generated from a source of free streaming energy within a collisionless plasma. The initial evolution of microturbulence, during which the electron drift energy is very efficiently converted to electron thermal energy and ion sloshing energy, is now largely understood. The authors have also developed a model of the late-time turbulence evolving in a driven toroidal confinement device. Several investigations have also been completed of the generation of plasma turbulence via the decay of large amplitude waves. Finally, the authors have initiated research on the feasibility of heating fusion plasmas via the injection of energetic beams of relativistic electrons. (Author).
Download or read book Dynamic Behavior of Turbulent Heating of Plasmas written by Y. Nakagawa and published by . This book was released on 1974 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Turbulent Heating of a Plasma by a High Electric Field written by Hans Willem Piekaar and published by . This book was released on 1972 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Heating in Plasmas written by Paul Koch and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a Lagrangian analysis of homogeneous plasma turbulence were used to justify the assumtion that trapped particle modes were instrumental in the turbulent heating of plasma, and a set of equations was derived which describes the behavior of individual waves of that type. In section 2 the usual probabilistic assumptions of homogeneous turbulence are applied to the basic equations of a Vlasov plasma. A simple mixing length approximation is used to achieve closure of the resulting set of equations. Section 3 contains some basic principles of Lagrangian plasma turbulence. In section 4 trapped particle modes are examined and the results of Bohm and Gross are extended so that the exact non-linear equations that govern them can be derived. (Author).
Download or read book Turbulence and Instabilities in Magnetised Plasmas written by Bruce D. Scott and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Plasma Heating Through Parametrically Induced Turbulence written by Arthur Lawrence Pavel and published by . This book was released on 1976 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic waves have been shown to be capable of significantly modifying both the magnetospheric and ionospheric plasma. Laboratory studies of the plasma instabilities generated in microwave-plasma interactions have helped to understand the geophysical experiments. Microwave-plasma research has also been useful in modeling the interaction of lasers and plasmas, particularly in relation to efforts using pulsed lasers to compress and heat plasma to thermonuclear conditions. An experiment is described which investigates the evolution of the parametric instability which occurs with near resonant matching of the microwave frequency and plasma frequency. Near threshold, a finely detailed spectrum of satelite electron plasma waves is observed. These waves break down into a turbulent plasma condition with a marked change in power absorbed by the plasma. The plasma passes through several distinctive regimes of turbulent plasma conditions. At the highest power levels used, there are plasma waves hundreds of megacycles from the driving frequency. The plasma is found to absorb a significant amount of power and heat electrons to high energies. (Author).
Download or read book The Turbulent Heating of a Plasma by a High Electrid Field written by Hans Willem Piekaar and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Heating in a Beam Plasma System written by Michael Roy Mross and published by . This book was released on 1975 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Heating in Space Plasmas written by Riddhi Bandyopadhyay and published by . This book was released on 2021 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: A turbulent system transfers energy from large scales to progressively smaller scales until it is ultimately dissipated as heat. At intermediate length scales, this energy transfer mostly occurs from larger scales to smaller scales, without any loss of energy. This process is known as the energy cascade. Most space and astrophysical plasmas are considered to exist in a turbulent state. Turbulent energy cascade and dissipation have significant effects on the dynamics of the plasma. However, the nature of energy dissipation is not well understood in weakly-collisional plasmas. Several mechanisms have been proposed as candidates for energy dissipation in these systems. Examples include magnetic reconnection, Landau damping, damping of waves, and heating by microinstabilities, all of which can contribute to plasma heating. A complementary point of view treats the plasma as a statistically homogeneous system with all the aforementioned processes embedded ab inito in an ensemble. From this perspective, an important question is how to quantitatively estimate the average rates of energy transfer and dissipation. In this dissertation, we attempt to answer this and related questions, with a focus on heliospheric plasmas, although the same understandings apply in other turbulent plasmas in laboratory, geophysical, and astrophysical systems.
Download or read book Turbulent Heating of Plasmas by High Energy Particle Beams written by W. E. Drummond and published by . This book was released on 1976 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the performance period on this contract, 30 June 1976, substantial progress has been made in our research on the interactions of high energy beams of charged particles. The mechanisms and efficiency of energy transfer have been investigated from relativistic electron beams to much denser, high-z target plasmas. Provided that the beam quality is sufficiently well controlled, optimization of the primary beam-plasma interaction, through selection of beam density and energy, should permit at least 15% of the beam energy to be deposited during a single pass in targets near 100,000 times as dense as the beam. Estimation of ionization and radiation processes indicate that a beam-heated plasma source of multi-kilojoule, multigigawatt radiation in the 10 - 10,000 eV portion of the photon energy spectrum may be achievable. More recently a number of calculations have been completed relevant to the development of collective ion accelerators. Required conditions have been determined for both equilibria and stability of powerful, unneutralized electron beams propagating along a magnetic guide field. Also studied were the collective ionelectron cyclotron interaction which can occur between a non-neutral ultra-relativistic electron beam and a less dense species of ions. Various regimes of this interaction have been investigated, and in one important regime for which the instability growth rate is less than the transverse bounce frequency of the ions in the radial electric field of the electron beam, two dimensional computer simulations have been performed.
Download or read book The Turbulent Heating of a Plasma by a High Electric Field written by H.W. Piekaar and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temporal and Spatial Origin of Hot Ions in Turbulent Heating of a Plasma written by T. Kawabe and published by . This book was released on 1970 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Transfer and Dissipation in Plasma Turbulence written by Yan Yang and published by Springer. This book was released on 2019-05-02 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
