Download or read book Physics of Collisionless Shocks written by André Balogh and published by Springer Science & Business Media. This book was released on 2013-01-04 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book provides a contemporary systematic treatment of shock waves in high-temperature collisionless plasmas as are encountered in near Earth space and in Astrophysics. It consists of two parts. Part I develops the complete theory of shocks in dilute hot plasmas under the assumption of absence of collisions among the charged particles when the interaction is mediated solely by the self-consistent electromagnetic fields. Such shocks are naturally magnetised implying that the magnetic field plays an important role in their evolution and dynamics. This part treats subcritical shocks which dissipate flow energy by generating anomalous resistance or viscosity. The main emphasis is, however, on super-critical shocks where the anomalous dissipation is insufficient to retard the upstream flow. These shocks, depending on the direction of the upstream magnetic field, are distinguished as quasi-perpendicular and quasi-parallel shocks which exhibit different behaviours, reflecting particles back upstream and generating high electromagnetic wave intensities. Particle acceleration and turbulence at such shocks become possible and important. Part II treats planetary bow shocks and the famous Heliospheric Termination shock as examples of two applications of the theory developed in part I.
Download or read book Collisionless Shocks in Space Plasmas written by David Burgess and published by Cambridge University Press. This book was released on 2015-07-30 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: An engaging introduction to collisionless shocks in space plasmas, presenting a complete review, from first principles to current research.
Download or read book A Study of Collisionless Plasma Shocks written by Ralph H. Lovberg and published by . This book was released on 1973 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses an experiment designed to study collisionless shock waves in an inverse pinch discharge using argon. A magnetic disturbance was generated which propagated ahead of the driving field at twice the piston speed. Measurements of the magnetic and electric field structures, electron density and temperature, as well as ion velocities revealed that the disturbance was produced by a beam of plasma moving through the ionized ambient plasma rather than by a true shock wave. Calculations of ion trajectories using measured electric fields demonstrated that the beam originated at small radii and early times, and was not the result of a steady specular reflection from the piston field. It is concluded that the ions comprising this stream, which were collisionless relative to the ambient ions, did not couple to the background plasma even though a strong magnetic field was applied. (Author).
Download or read book A Study of Charged Particle Trajectories at Shocks in a Collisionless Plasma written by Michael Patrick McCarthy and published by . This book was released on 1988 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Waves in Collisionless Plasmas written by Derek A. Tidman and published by John Wiley & Sons. This book was released on 1971 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of a Collisionless Shock in a Plasma written by Angelo L. Gattozzi and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collisionless Shocks in the Heliosphere written by Robert G. Stone and published by American Geophysical Union. This book was released on 1985 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 35. Violent expansions of the solar corona cause transient shock waves which propagate outward from the sun at hundreds to thousands of kilometers per second; simple solar wind velocity gradients at the surface of the sun lead to high-speed streams overtaking slower streams, forming corotating shocks; and steady state supermagnetosonic solar wind flow past objects such as the planets lead to standing bow shocks. However, the solar wind plasma is so hot and tenuous that charged particle Coulomb collisions produce negligible thermalization or dissipation on scale sizes less than 0.1 AU. The irreversible plasma heating by these shocks is accomplished by wave-particle interactions driven by plasma instabilities. Hence these shocks are described as "collisionless."
Download or read book Collisionless Shocks in Space Plasmas written by David Burgess (Astrophysicist) and published by . This book was released on 2015 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics of Collisionless Shocks written by and published by Springer. This book was released on 2013-01-04 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collisionless Electron Plasma Wave Shocks written by K. Saéki and published by . This book was released on 1973 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Novel Platform to Study Magnetized High velocity Collisionless Shocks written by and published by . This book was released on 2014 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental platform to study the interaction of two colliding high-velocity (0.01-0.2c; 0.05-20 MeV) proton plasmas in a high strength (20 T) magnetic field is introduced. This platform aims to study the collision of magnetized plasmas accelerated via the Target-Normal-Sheath-Acceleration mechanism and initially separated by distances of a few hundred microns. The plasmas are accelerated from solid targets positioned inside a few cubic millimeter cavity located within a Helmholtz coil that provides up to 20 T magnetic fields. Various parameters of the plasmas at their interaction location are estimated. These show an interaction that is highly non-collisional, and that becomes more and more dominated by the magnetic fields as time progresses (from 5 to 60 ps). Particle-in-cell simulations are used to reproduce the initial acceleration of the plasma both via simulations including the laser interaction and via simulations that start with preheated electrons (to save dramatically on computational expense). The benchmarking of such simulations with the experiment and with each other will be used to understand the physical interaction when a magnetic field is applied. In conclusion, the experimental density profile of the interacting plasmas is shown in the case without an applied magnetic magnetic field, so to show that without an applied field that the development of high-velocity shocks, as a result of particle-to-particle collisions, is not achievable in the configuration considered.
Download or read book A Quarter Century of Collisionless Shock Research written by C. P. Kennel and published by . This book was released on 1984 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PROPERTIES OF COLLISIONLESS PLASMAS written by R. M. Patrick and published by . This book was released on 1970 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A plasma wind tunnel was developed which, for the first time, created a steady flow (for times in excess of one millisecond) of collision-free plasma. This plasma has a transport-free path which is very long compared to the flow dimensions (one meter); however, the gyro radii of the ions and electrons in the flow are small compared to the flow dimension. This apparatus was used where the plasma flow pressure was large compared to the magnetic field in the plasma, allowing the study of flows where the plasma speed was greater than the local Alfven speed in the flow. This is necessary to study stationary shock structure, since a super-Alfvenic flow is required to produce plasma shock waves. A high pressure Magnetic Annular Arc (MAARC) facility was constructed to test the feasibility of increasing the stagnation pressure of an ultra-high-speed gas flow (velocities in excess of 25,000 ft/sec). The stagnation pressure in a nitrogen flow was increased from 2 atm to nearly 10 atm. This device operates at a power level equal to 20 million watts and has an anode bore equal to 5 cm, demonstrating the successful use of magnetic fields to control heat transfer and create useful body forces. The magnetic annular arc technology was also used to produce high speed shocks in a conventional shock tube. This was done using a standard 4-cm bore shock tube, and collisional shock waves with speeds in excess of 20,000 m/sec were obtained. (Author).
Download or read book Research on Plasma Simulation by Computer for Studies of Collisionless Shocks and Plasma Turbulence written by John M. Dawson and published by . This book was released on 1972 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research dealt with the development of numerical techniques for simulating plasmas and the application of these techniques to solve important problems on the nonlinear and turbulent behavior of plasmas. A number of significant problems were solved on the anomalous absorption of intense radiation by plasma, and on the anomalous diffusion of plasma across a magnetic field. (Author).
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 Laboratory Study of High Collision free Plasma Shock Waves written by William W. Destler and published by . This book was released on 1972 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of Electron Acceleration at Collisionless Plasma Shocks written by Robert Edward Lowe and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
