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Author : Glenn Joyce
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (156 download)
Download or read book Numerical Simulation of Plasma Double Layers written by Glenn Joyce and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christoph Goertz
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (133 download)
Download or read book Numerical Simulation of the Plasma Double Layer written by Christoph Goertz and published by . This book was released on 1974 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sathyanarayan N. Rao
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (81 download)
Download or read book Numerical Simulation of Electric Double Layers in a Helicon Plasma Device written by Sathyanarayan N. Rao and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Y.N. Dnestrovskii
Publisher : Springer Science & Business Media
ISBN 13 : 3642825923
Total Pages : 317 pages
Book Rating : 4.6/5 (428 download)
Download or read book Numerical Simulation of Plasmas written by Y.N. Dnestrovskii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to mathematical modeling of tokamak plasma. Since the appearance in 1982 of the first edition (in Russian), a considerable amount of experimental and theoretical material on tokamak research has been accumu lated. The new-generation devices, viz. , TFTR, JET and JT-60 were put into operation. The first experiments on these units have confirmed the correctness of the basic physical concepts underlying their construction. Experiments on plasma heating with the help of neutral beams and high-frequency (HF) waves on previous generation devices made it possible to obtain high-P plasmas. The number of "medium-size" tokamaks in operation has increased. New experi mental results and advances in the theory have led to more complicated and perfected models of high-temperature plasma. Rapid progress in computer hardware and software has played an important role in the further development of mathematical modeling. While preparing the English edition of the book, we have revised the text considerably. Several new models which have undergone significant advance ment in recent years are described. A section devoted to models of RF (radio frequency) current drive has been added to Chap. 2. The reduced magneto hydrodynamic (MHD) equations for high-P plasma are now considered in detail in Chap. 3. Chapter 4 contains the latest results on anomalous thermal conductivity, diffusion coefficient and pinching. Two new sections are added to Chap. 5.
Author : Roman Schrittwieser
Publisher : World Scientific
ISBN 13 : 9814552968
Total Pages : 502 pages
Book Rating : 4.8/5 (145 download)
Download or read book Double Layers And Other Nonlinear Potential Structures In Plasmas - Proceedings Of The Fourth Symposium written by Roman Schrittwieser and published by World Scientific. This book was released on 1993-09-30 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourth Symposium on Double Layers and Other Nonlinear Potential Structures in Plasmas was held in July 1992 in Austria. 86 scientists from all parts of the world attended. The 51 papers that were contributed, in addition to 14 invited lectures, have been compiled in this book. The main topics discussed during the Symposium include experiments, theory, simulation, space and others. The invited speakers concentrated on the various laboratory double layers, theoretical and numerical treatments of double layers and the existence of magnetospheric double layers. The last topic in particular inspired much lively and interesting debate among the participants.
Author : Albert Meige
Publisher :
ISBN 13 :
Total Pages : 304 pages
Book Rating : 4.:/5 (845 download)
Download or read book Numerical Modeling of Low-pressure Plasmas written by Albert Meige and published by . This book was released on 2006 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Inductive plasmas are simulated by using a one-dimensional particle-in-cell simulation including Monte Carlo collision techniques (pic/mcc). To model inductive heating, a non-uniform radio-frequency (rf) electric field, perpendicular to the electron motion is included into the classical particle-in-cell scheme. The inductive plasma pic simulation is used to confirm recent experimental results that electric double layers can form in current-free plasmas. These results differ from previous experimental or simulation systems where the double layers are driven by a current or by imposed potential differences. The formation of a super-sonic ion beam, resulting from the ions accelerated through the potential drop of the double layer and predicted by the pic simulation is confirmed with nonperturbative laser-induced fluorescence measurements of ion flow. It is shown that at low pressure, where the electron mean free path is of the order of, or greater than the system length, the electron energy distribution function (eedf) is close to Maxwellian, except for its tail which is depleted at energies higher than the plasma potential. Evidence supporting that this depletion is mostly due to the high-energy electrons escaping to the walls is given. A new hybrid simulation scheme (particle ions and Boltzmann/particle electrons), accounting for non-Maxwellian eedf and self-consistently simulating low-pressure high-density plasmas at low computational cost is proposed. Results obtained with the 'improved' hybrid model are in much better agreement with the full pic simulation than the classical non self-consistent hybrid model. This model is used to simulate electronegative plasmas and to provide evidence supporting the fact that propagating double layers may spontaneously form in electronegative plasmas. It is shown that critical parameters of the simulation were very much aligned with critical parameters of the experiment."
Author : Bengt Hultgvist
Publisher : Springer Science & Business Media
ISBN 13 : 146133652X
Total Pages : 543 pages
Book Rating : 4.4/5 (613 download)
Download or read book High-Latitude Space Plasma Physics written by Bengt Hultgvist and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nobel symposium No. 54 on High Latitude Magnetospheric/Iono spheric Plasma Physics was organized in Kiruna, Sweden on March 22-25, 1982 by Kiruna Geophysical Institute and EISCAT Scientific Association. Some 50 leading experts from Western Europe, America and USSR were invited to the Symposium. One main purpose of the Symposium was to prepare for the intense European research effort in space plasma physics in the middle 1980's, in which the EISCAT facilities and the Swedish satellite Viking are two of the more important constituents. The prograuune of the symposium was tied to the physics of those regions of near space where EISCAT and Viking are expected to pro vide important new observational results. This is rather well covered by the t it Ie of these proceedings: High Lat itude Space Plasma Physics. The first two sessions dealt with the physics of the high latitude ionosphere and the third one with how this part of near space is affected by the properties of the solar wind and the interplanetary magnetic field. The remaining three sessions covered fairly extensively the high latitude magnetospheric physics at altitudes of 1-2 earth radii, which is the main scien tific object of the Viking project. The Prograuune COllDlittee of the Kiruna Nobel Symposium was composed of the following European scientists: P. Bauer (Issy-les-Moulineaux), R. Bostrom (Uppsala), C.G. FalthallDlar (Stockholm), T. Hagfors (Kiruna, Cochairman), o. Holt (Troms, s), B. Hultqvist (Kiruna, Cochairman), H. Kohl (Lindau), J. Oksman (Oulu), H. Rishbeth (Chilton), and L. Stenflo (Ume!).
Author : Gregg T. Anderson
Publisher :
ISBN 13 : 9781423540823
Total Pages : 99 pages
Book Rating : 4.5/5 (48 download)
Download or read book A Numerical Simulation of a Carbon Black Suspension Cell Via a Time- Reversed, Double Layer Compute Algorithm written by Gregg T. Anderson and published by . This book was released on 1999-12-01 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical simulation of a carbon black suspension cell is explored which models a laser-induced plasma within a liquid ethanol medium of approximately 1 mm thickness. The simulation model assumes a laser pulse with a pulse width of approximately 9 nsecs propagating in the left-to-right direction striking the front surface of the medium and focusing to a spot within the liquid volume. When the energy density within a given irradiated volume is sufficiently high, it ignites the carbon particles and generates a large number of free electrons, i.e., a plasma. The plasma couples with the in-coming laser energy on a picosecond timescale, thereby attenuating the intensity of the remaining pulse as it traverses the medium. The simulation divides the sample into discrete layers and models the propagation of the plasma through the course of a single laser pulse containing a total fluence of 1 Joule/sq cm. A new double layer, time-reversed algorithm is employed which modifies and extends the capabilities of the existing code. The older version is used as a baseline for comparison with the new program.
Author : Rajendra Mitharwal
Publisher :
ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (754 download)
Download or read book A Two-dimensional Numerical Simulation of Plasma Wake Structure Around a CubeSat written by Rajendra Mitharwal and published by . This book was released on 2011 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical model was developed to understand the time evolution of a wake structure around a CubeSat moving in a plasma with transonic speed. A cubeSat operates in the F2 layer of ionosphere with an altitude of 300 - 600 Km. The average plasma density varies between 10-6cm-3 - 10-9cm-3 and the temperature of ions and electrons is found between 0.1-0.2 eV. The study of a wake structure can provide insights for its effects on the measurements obtained from space instruments. The CubeSat is modeled to have a metal surface, which is a realistic assumption, with a negative electric potential. To solve the equations of plasma, the numerical difference equations were obtained by discretizing the fluid equations of the plasma along with nonlinear Poisson's equation. The electrons were assumed to follow the Boltzmann's relation and the dynamics of ions was followed using the fluid equations. The initial and boundary conditions for the evolution of the structure are discussed. The computation was compared to the analytical solution for a 1D problem before being applied to the 2D model. There was a good agreement between the numerical and analytical solution. In the 2D simulation, we observe the formation of plasma wake structure around the CubeSat. The plasma wake structure consists of rarefaction region where ion density and ion velocity decreases compared to the initial density and velocity.
Author : Jacques Blum
Publisher : Bordas Editions
ISBN 13 :
Total Pages : 392 pages
Book Rating : 4.F/5 ( download)
Download or read book Numerical Simulation and Optimal Control in Plasma Physics written by Jacques Blum and published by Bordas Editions. This book was released on 1989 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lloyd E. Johnson
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (164 download)
Download or read book Numerical Model of Plasma Double Layers Using the Vlasov Equation written by Lloyd E. Johnson and published by . This book was released on 1979 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander S. Lipatov
Publisher : Springer Science & Business Media
ISBN 13 : 9783540417347
Total Pages : 432 pages
Book Rating : 4.4/5 (173 download)
Download or read book The Hybrid Multiscale Simulation Technology written by Alexander S. Lipatov and published by Springer Science & Business Media. This book was released on 2002-05-27 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive description of hybrid plasma simulation models providing a very useful summary and guide to the vast literature on this topic.
Author : Anthony L. Peratt
Publisher : Springer
ISBN 13 : 1461478197
Total Pages : 419 pages
Book Rating : 4.4/5 (614 download)
Download or read book Physics of the Plasma Universe written by Anthony L. Peratt and published by Springer. This book was released on 2014-09-11 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today many scientists recognize plasma as the key element to understanding new observations in near-Earth, interplanetary, interstellar, and intergalactic space; in stars, galaxies, and clusters of galaxies, and throughout the observable universe. Physics of the Plasma Universe, 2nd Edition is an update of observations made across the entire cosmic electromagnetic spectrum over the two decades since the publication of the first edition. It addresses paradigm changing discoveries made by telescopes, planetary probes, satellites, and radio and space telescopes. The contents are the result of the author's 37 years research at Livermore and Los Alamos National Laboratories, and the U.S. Department of Energy. This book covers topics such as the large-scale structure and the filamentary universe; the formation of magnetic fields and galaxies, active galactic nuclei and quasars, the origin and abundance of light elements, star formation and the evolution of solar systems, and cosmic rays. Chapters 8 and 9 are based on the research of Professor Gerrit Verschuur, and reinvestigation of the manifestation of interstellar neutral hydrogen filaments from radio astronomical observations are given. Using data from the Green Bank 100-m telescope (GBT) of the National Radio Astronomy Observatory (NRAO), detailed information is presented for a non-cosmological origin for the cosmic microwave background quadruple moment. This volume is aimed at graduate students and researchers active in the areas of cosmic plasmas and space science. The supercomputer and experimental work was carried out within university, National laboratory, Department of Energy, and supporting NASA facilities.
Download or read book Simulation of Plasma Double-layer Structures written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrostatic plasma double layers are numerically simulated by means of a magnetized 2 1/2-dimensional particle-in-cell method. The investigation of planar double layers indicates that these one-dimensional potential structures are susceptible to periodic disruption by instabilities in the low-potential plasmas. Only a slight increase in the double-layer thickness with an increase in its obliqueness to the magnetic field is observed. Weak magnetization results in the double-layer electric-field alignment of accelerated particles and strong magnetization results in their magnetic-field alignment. The numerial simulations of spatially periodic two-dimensional double layers also exhibit cyclical instability. A morphological invariance in two-dimensional double layers with respect to the degree of magnetization implies that the potential structures scale with Debye lengths rather than with gyroradii. Electron-beam excited electrostatic electron-cyclotron waves and (ion-beam driven) solitary waves are present in the plasmas adjacent to the double layers.
Author : R. Schrittwieser
Publisher :
ISBN 13 :
Total Pages : 434 pages
Book Rating : 4.E/5 ( download)
Download or read book Second Symposium on Plasma Double Layers and Related Topics, July 5/6, 1984, Innsbruck, Austria written by R. Schrittwieser and published by . This book was released on 1984 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marian Elizabeth Silberstein
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.E/5 ( download)
Download or read book Alfvén Waves and Microinstabilities in Auroral Plasma written by Marian Elizabeth Silberstein and published by . This book was released on 1996 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph E. Borovsky
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (148 download)
Download or read book The Simulation of Plasma Double Layer Structures in Two Dimensions written by Joseph E. Borovsky and published by . This book was released on 1981 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
