Download or read book Stability of Ion temperature gradient Driven Modes Intokamakswith Magnetic Separatrix written by S. Briguglio and published by . This book was released on 1989 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Density Gradient Effects on the Stability of Ion Temperature Gradient Driven Drift Modes written by Anders Jarmén and published by . This book was released on 1987 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Details of Ion Temperature Gradient Driven Instability Saturation written by Garth Whelan and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat and particle transport due to plasma microturbulence represents a challenge in the development of commercial fusion power. Microturbulence is caused by gyroradius-scale instabilities, of which the Ion-Temperature-Gradient-Driven (ITG) instability is one. This thesis uses gyrokinetic simulations to characterize how the linear ITG instability saturates, as well as to study the turbulent state that arises. In all of the ITG parameter cases investigated here, zonal flows, which are flows constant along a flux surface, are prominent. Zonal flows are linearly damped and thus must be driven nonlinearly. Some nonlinear energy transfer from the instability sustains the flows, but the majority of the energy injected by the instability is balanced by nonlinear transfer to smaller radial-scale stable and unstable eigenmodes. Unlike Kolmogorov turbulence, the dissipation scale overlaps with the injection scale, so there is no inertial range. This thesis investigates two phenomena relating to ITG in particular, the nonlinear critical temperature-gradient upshift (the Dimits shift) and the nonlinearly enhanced transport reduction which occurs when the normalized plasma pressure beta is increased. It is found that, while stable modes are the primary saturation mechanism, the Dimits shift cannot be attributed to a direct reduction of the heat flux by stable modes, or to their effects on the energy injection rate. It has been suggested that energy transfer out of zonal flows, in a manner like tertiary instability, could limit their amplitude and set the nonlinear critical gradient. We find that this is not possible directly, as transfer of flow energy is into the zonal flows for all wavenumber couplings. We apply these same techniques to the nonlinearly enhanced reduction of transport with beta. Qualitatively, the saturation process is similar throughout the range of beta. Stable mode effects only slightly increased with beta. Instead, the majority of the reduction is explained by better frequency matching between interacting modes, which causes energy transfer to be more efficient. This effect can be included in quasilinear mixing-length transport models, and we show that it explains 50% to 100% of the enhanced transport reduction with beta in five out of six test cases.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report 1989 90 written by New Brunswick. Department of Transportation and published by . This book was released on 1991 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: General activity review of associated branches and agencies to the Department which includes corporate securities registrations, a list of tenders received, and general financial data. Branches and agencies reviewed are responsible for motor vehicle activity, highway construction, traffic engineering, telecommunications and public utilities.
Download or read book Current Engineering Practice written by and published by . This book was released on 1981 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlled Fusion and Plasma Physics written by Kenro Miyamoto and published by Taylor & Francis. This book was released on 2006-10-23 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resulting from ongoing, international research into fusion processes, the International Tokamak Experimental Reactor (ITER) is a major step in the quest for a new energy source.The first graduate-level text to cover the details of ITER, Controlled Fusion and Plasma Physics introduces various aspects and issues of recent fusion research activ
Download or read book Fundamentals of Plasma Physics written by J. A. Bittencourt and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Plasma Physics is a general introduction designed to present a comprehensive, logical and unified treatment of the fundamentals of plasma physics based on statistical kinetic theory, with applications to a variety of important plasma phenomena. Its clarity and completeness makes the text suitable for self-learning and for self-paced courses. Throughout the text the emphasis is on clarity, rather than formality, the various derivations are explained in detail and, wherever possible, the physical interpretations are emphasized. The mathematical treatment is set out in great detail, carrying out the steps which are usually left to the reader. The problems form an integral part of the text and most of them were designed in such a way as to provide a guideline, stating intermediate steps with answers.
Download or read book Nuclear Fusion written by Edward Morse and published by Springer. This book was released on 2018-10-15 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The pursuit of nuclear fusion as an energy source requires a broad knowledge of several disciplines. These include plasma physics, atomic physics, electromagnetics, materials science, computational modeling, superconducting magnet technology, accelerators, lasers, and health physics. Nuclear Fusion distills and combines these disparate subjects to create a concise and coherent foundation to both fusion science and technology. It examines all aspects of physics and technology underlying the major magnetic and inertial confinement approaches to developing nuclear fusion energy. It further chronicles latest developments in the field, and reflects the multi-faceted nature of fusion research, preparing advanced undergraduate and graduate students in physics and engineering to launch into successful and diverse fusion-related research. Nuclear Fusion reflects Dr. Morse’s research in both magnetic and inertial confinement fusion, working with the world’s top laboratories, and embodies his extensive thirty-five year career in teaching three courses in fusion plasma physics and fusion technology at University of California, Berkeley.
Download or read book INIS Atomindex written by and published by . This book was released on 1985 with total page 1516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Energy Principle for Hydromagnetic Stability Problems written by Ira B. Bernstein and published by . This book was released on 1957 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Electric Potential in Toroidal Plasmas written by A.V. Melnikov and published by Springer. This book was released on 2019-03-20 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work introduces heavy ion beam probe diagnostics and presents an overview of its applications. The heavy ion beam probe is a unique tool for the measurement of potential in the plasma core in order to understand the role of the electric field in plasma confinement, including the mechanism of transition from low to high confinement regimes (L–H transition). This allows measurement of the steady-state profile of the plasma potential, and its use has been extended to include the measurement of quasi-monochromatic and broadband oscillating components, the turbulent-particle flux and oscillations of the electron density and poloidal magnetic field. Special emphasis is placed on the study of Geodesic Acoustic Modes and Alfvén Eigenmodes excited by energetic particles with experimental data sets. These experimental studies help to understand the link between broadband turbulent physics and quasi-coherent oscillations in devices with a rather different magnetic configuration. The book also compares spontaneous and biased transitions from low to high confinement regimes on both classes of closed magnetic traps (tokamak and stellarator) and highlights the common features in the behavior of electric potential and turbulence of magnetized plasmas. A valuable resource for physicists, postgraduates and students specializing in plasma physics and controlled fusion.
Download or read book The Fairy Tale of Nuclear Fusion written by L. J. Reinders and published by Springer Nature. This book was released on 2021-05-20 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: This carefully researched book presents facts and arguments showing, beyond a doubt, that nuclear fusion power will not be technically feasible in time to satisfy the world's urgent need for climate-neutral energy. The author describes the 70-year history of nuclear fusion; the vain attempts to construct an energy-generating nuclear fusion power reactor, and shows that even in the most optimistic scenario nuclear fusion, in spite of the claims of its proponents, will not be able to make a sizable contribution to the energy mix in this century, whatever the outcome of ITER. This implies that fusion power will not be a factor in combating climate change, and that the race to save the climate with carbon-free energy will have been won or lost long before the first nuclear fusion power station comes on line. Aimed at the general public as well as those whose decisions directly affect energy policy, this book will be a valuable resource for informing future debates.
Download or read book Japanese Journal of Applied Physics written by and published by . This book was released on 1991 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
