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Author : Harold R. Kaufman
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Electron Diffusion in a Turbulent Plasma written by Harold R. Kaufman and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Harold R. Kaufman
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (249 download)
Download or read book Electron Diffusion in a Turbulent Plasma written by Harold R. Kaufman and published by . This book was released on 1962 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Radu Balescu
Publisher : CRC Press
ISBN 13 : 9781420034684
Total Pages : 498 pages
Book Rating : 4.0/5 (346 download)
Download or read book Aspects of Anomalous Transport in Plasmas written by Radu Balescu and published by CRC Press. This book was released on 2005-04-01 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anomalous transport is a ubiquitous phenomenon in astrophysical, geophysical and laboratory plasmas; and is a key topic in controlled nuclear fusion research. Despite its fundamental importance and ongoing research interest, a full understanding of anomalous transport in plasmas is still incomplete, due to the complexity of the nonlinear phenomena involved. Aspects in Anomalous Transport in Plasmas is the first book to systematically consider anomalous plasma transport theory and provides a unification of the many theoretical models by emphasizing interrelations between seemingly different methodologies. It is not intended as a catalogue of the vast number of plasma instabilities leading to anomalous transport; instead it chooses a number of these and emphasizes the aspects specifically due to turbulence. After a brief introduction, the microscopic theory of turbulence is discussed, including quasilinear theory and various aspects of renormalization methods, which leads to an understanding of resonance broadening, mode coupling, trajectory correlation and clumps. The second half of the book is devoted to stochiastic tramsport, using methods based on the Langevin equations and on Random Walk theory. This treatment aims at going beyond the traditional limits of weak turbulence, by introducing the recently developed method of decorrelation trajectories, and its application to electrostatic turbulence, magnetic turbulence and zonal flow generation. The final chapter includes very recent work on the nonlocal transport phenomenon.
Author : Vitalii D. Shafranov
Publisher : Springer Science & Business Media
ISBN 13 : 3540745769
Total Pages : 214 pages
Book Rating : 4.5/5 (47 download)
Download or read book Reviews of Plasma Physics written by Vitalii D. Shafranov and published by Springer Science & Business Media. This book was released on 2008-07-24 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents two reviews from the cutting-edge of Russian plasma physics research. The first review is devoted to the mechanisms of transverse conductivity and generation of self-consistent electric fields in strongly ionized magnetized plasma. The second review considers numerous aspects of turbulent transport in plasma and fluids. This second review is focused on scaling arguments for describing anomalous diffusion in the presence of complex structures.
Author : V. N. Tsytovich
Publisher : Elsevier
ISBN 13 : 1483139921
Total Pages : 144 pages
Book Rating : 4.4/5 (831 download)
Download or read book An Introduction to the Theory of Plasma Turbulence written by V. N. Tsytovich and published by Elsevier. This book was released on 2016-07-29 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to the Theory of Plasma Turbulence is a collection of lectures given by the author at Culham laboratory. The book deals with developments on the theory of plasma turbulence. The author describes plasma properties in the turbulent regions as mostly non-linear in nature, and notes that these properties can be regarded as a universal spectrum independent of any type of instability. The text then discusses the general problems of the theory of plasma turbulence. The author also shows that elementary excitation of ""dressed"" particles have a finite lifetime associated with non-linear interactions. The book then discusses the excitation of ion-sound turbulence using different processes, for example, shock waves; the text also analyzes the kind of non-linear interactions present in such energy transfer. The author also explains the Langmuir plasma oscillations — a typical collective plasma motion that can be excited using different types of mechanism such as an electron beam. The book then describes the electromagnetic properties of turbulent plasma and relates the state of turbulent plasma as a natural occurrence in the universe. The book notes the problem of cosmic rays, not as an energy transfer to faster particles, but as an energy distribution between particles. The text will prove valuable for nuclear physicists, scientists, and academicians in the field of quantum mechanics.
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : 832 pages
Book Rating : 4.:/5 (89 download)
Download or read book NASA Technical Note written by United States. National Aeronautics and Space Administration and published by . This book was released on 1959 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. Esarey
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (13 download)
Download or read book Stabilization of the Tearing Mode in Low Density Tokamak Plasmas by Turbulent Electron Diffusion written by E. Esarey and published by . This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yan Yang
Publisher : Springer
ISBN 13 : 9811381496
Total Pages : 134 pages
Book Rating : 4.8/5 (113 download)
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.
Author : Michio Matsumoto
Publisher : Springer
ISBN 13 : 3322878511
Total Pages : 21 pages
Book Rating : 4.3/5 (228 download)
Download or read book Cross-Magnetic Turbulent Diffusion of Charged Particles in a Weakly Ionized Plasma written by Michio Matsumoto and published by Springer. This book was released on 2012-12-06 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is very important to know how field fluctuations affect the diffusion of plasma across a strong magnetic field B. Many investigators have studied this problem theoretically1)'"'-8) and expertmentally. 9)~12) In cases of weak turbulence, the ion diffusion coefficient Dl is proportional to the electric field fluctuation energy or the mean square amplitude of density fluctua tions. 1) For a higher degree of fluctuation amplitudes exceeding a certain 2 7 threshold which is given by the relation1/2 e he/Te = 1t P Dupree) T proposed D~ rJ. 1/2. Here, e = lei is the electronic char;e, he the electron Debye length, Te the electron teriip:rature in unit of energy, PTe the electron mean Larmor radius and "}1. = no on%x, no (r) being the mean density of charged particles. Dupree's theory, however, is applicable 12 only to the ion diffusion in a c ollisionless plasma. Walsh et a1) determined from measurements in the Q-machine the diffusion coefficient as a function of the mean square amplitude of density fluctuations. Their experimental results are in good agreement with the predictions of Dupree's theory. 2 The turbulent diffusion in the positive column was first studied by Kadomtsev
Author : C Wendell Horton, Jr
Publisher : #N/A
ISBN 13 : 9813225904
Total Pages : 522 pages
Book Rating : 4.8/5 (132 download)
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.
Author : Matthew Randall Stoneking
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (89 download)
Download or read book Fast Electron Generation and Transport in a Turbulent, Magnetized Plasma written by Matthew Randall Stoneking and published by . This book was released on 1994 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. N. Tsytovich
Publisher : Springer
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.3/5 (91 download)
Download or read book Theory of Turbulent Plasma written by V. N. Tsytovich and published by Springer. This book was released on 1977 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few years the physics of turbulent plasma has undergone rapid development, beginning with the first works, in which the term "turbulence" was used in various ways, and ending with the fundamental studies which provide a thorough examina tion of the turbulent state of plasma. In physics it is usually found that value is not so much contained in specific results for a partic ular field as it is in the more general outlook and overall view of the problem. Occasionally the older results take on new mean ing after the general view of things is perfected. In the case of the physics of turbulent plasma, this general picture is now com plete, for the most part. The first review devoted to the problem of plasma turbulence was written by B. B. Kadomtsev [in "Problems in Plasma Theory," edited by M. A. Leontovich, Volume 4, Moscow, Atomizdat (1964), p. 188; English Translation: "Plasma Turbulence," Academic Press, London (1965)].
Author :
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (727 download)
Download or read book Neoclassical Diffusion in a Turbulent Plasma written by and published by . This book was released on 1991 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work describes a new approach to plasma transport where the toroidal drift motion is considered as a perturbation to the fluctuating velocity. Percolation theory is used to determine the scaling of the diffusion coefficient. Several neoclassical phenomena should persist even when diffusion is enhanced from neoclassical predictions. Numerical simulation results support the theoretical scaling arguments.
Author : Jerome Fox
Publisher :
ISBN 13 :
Total Pages : 566 pages
Book Rating : 4.F/5 ( download)
Download or read book Turbulence of Fluids and Plasmas written by Jerome Fox and published by . This book was released on 1969 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. P. Szuszczewicz
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (227 download)
Download or read book Plasma Diffusion in a Space-Simulation Beam-Plasma Discharge written by E. P. Szuszczewicz and published by . This book was released on 1979 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron density and temperature profiles have been measured in a large-facility beam-plasma-discharge(V sub B = 1.3 KeV, I sub B = 63 ma) at low pressure (P = 2-4(10 to the -6th power)Torr) and low magnetic fields (B = 1.2 G). The results follow an exponential behavior and are found to be in good agreement with a simple diffusion model. The favorable comparison between theory and experiment yields the first estimate of cross-field electron diffusion (perpendicular diffusion coefficient(nom) = 2.2 million sq cm/sec) under conditions intended to simulate Spacelab-borne beam-plasma investigations. This value for perpendicular diffusion coefficient is orders of magnitude larger than would be expected for a cross-field collisional diffusion process, a result which is identified with the turbulent state of collective beam-plasma interactions.
Author : R Geller
Publisher : CRC Press
ISBN 13 : 9780750301077
Total Pages : 456 pages
Book Rating : 4.3/5 (1 download)
Download or read book Electron Cyclotron Resonance Ion Sources and ECR Plasmas written by R Geller and published by CRC Press. This book was released on 1996-01-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acknowledged as the "founding father" of and world renowned expert on electron cyclotron resonance sources Richard Geller has produced a unique book devoted to the physics and technicalities of electron cyclotron resonance sources. Electron Cyclotron Resonance Ion Sources and ECR Plasmas provides a primer on electron cyclotron phenomena in ion sources as well as being a reference to the field of ion source developments. Coverage includes elements of plasma physics, specific electron cyclotron resonance physics, and the relevant technology directed at both scientists and engineers.
Author :
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (685 download)
Download or read book Fast Electron Generation and Transport in a Turbulent, Magnetized Plasma written by and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature of fast electron generation and transport in the Madison Symmetric Torus (MST) reversed field pinch (RFP) is investigated using two electron energy analyzer (EEA) probes and a thermocouple calorimeter. The parallel velocity distribution of the fast electron population is well fit by a drifted Maxwellian distribution with temperature of about 100 eV and drift velocity of about 2 x 106 m/s. Cross-calibration of the EEA with the calorimeter provides a measurement of the fast electron perpendicular temperature of 30 eV, much lower than the parallel temperature, and is evidence that the kinetic dynamo mechanism (KDT) is not operative in MST. The fast electron current is found to match to the parallel current at the edge, and the fast electron density is about 4 x 1011 cm−3 independent of the ratio of the applied toroidal electric field to the critical electric field for runaways. First time measurements of magnetic fluctuation induced particle transport are reported. By correlating electron current fluctuations with radial magnetic fluctuations the transported flux of electrons is found to be negligible outside r/a(approximately)0.9, but rises the level of the expected total particle losses inside r/a(approximately)0.85. A comparison of the measured diffusion coefficient is made with the ausilinear stochastic diffusion coefficient. Evidence exists that the reduction of the transport is due to the presence of a radial ambipolar electric field of magnitude 500 V/m, that acts to equilibrate the ion and electron transport rates. The convective energy transport associated with the measured particle transport is large enough to account for the observed magnetic fluctuation induced energy transport in MST.
