Download or read book A Collisionless Shock Wave Experiment written by and published by . This book was released on 1995 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collisionless shock waves are a very important heating mechanism for plasmas and are commonly found in space and astrophysical environments. Collisionless shocks were studied in the laboratory more than 20 years ago, and more recently in space via in situ satellite measurements. The authors propose a new laboratory shock wave experiment to address unresolved issues related to the differences in the partition of plasma heating between electrons and ions in space and laboratory plasmas, which can have important implications for a number of physical systems.
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 The Quasi parallel Collisionless Shock Wave written by Mark E. Mandt and published by . This book was released on 1988 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Experimental Study of Collisionless Shock Waves written by J. W. M. Paul and published by . This book was released on 1971 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Observations of Collisionless Shock Waves in a Magnetized Plasma written by J.W.M. Paul and published by . This book was released on 1965 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preionization for Collisionless Shock Wave Experiments by Means of Photionization written by M. Keilhacker and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preionization for collisionless shock wave experiments by means of photoionization written by Martin Keilhacker and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oblique Collisionless Shock Waves in Plasma written by William E. Drummond and published by . This book was released on 1969 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work covered by this report is part of an experimental program to study oblique shock waves in plasma. The support from DASA under this contract was for the continuation of the experimental program with particular regard to measurements on shock using light scattering techniques. The measurements made on the Texas oblique shock experiment were first detailed investigation of the magnetic and electronic structure of the oblique shock. Compared to the fairly extensive body of information which exists on shocks moving perpendicular to the magnetic field, there had previously been only very scanty results on oblique shocks. This was largely because the oblique shock has a larger scale length (approx. c/omega sub pi) than the perpendicular shock (approx. c/omega sub pe), and consequently experiments designed from the onset to study the oblique shock, and was significantly larger in scale (50 cm diameter) than most shock experiments. The experiment has yielded unique information about the structure of oblique shocks.
Download or read book A study of the structure of collisionless shock waves propagating perpendicular to an initial field written by Perry Edward Phillips and published by . This book was released on 1971 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Theoretical and Numerical Studies of Relativistic Collisionless Shock Waves written by Arno Vanthieghem and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collisionless relativistic shock waves play a major role in extreme astrophysical objects such as gamma-ray bursts, blazars and pulsars wind nebulae, in which they are held responsible for producing nonthermal particle and radiation distributions. Without an external magnetic field, these shocks stem from the interaction, mediated by microinstabilities, of a beam of Fermi-accelerated particles with the ambient plasma. There results an electromagnetic turbulence that scatters both the beam and plasma particles. While the background plasma is mainly slowed down and heated, a fraction of its particles are accelerated to suprathermal energies, thus sustaining the shock wave. Understanding the highly nonlinear physics of such structures requires combining analytical models and large-scale particle-in-cell (PIC) numerical simulations. After a short review of the concepts and numerical techniques used to address the topic, we first examine the evolution of the current filamentation instability, which prevails in the precursor region of initially unmagnetized shocks. We then develop a comprehensive microphysical model of such shocks. To this purpose, we introduce the notion of a preferential frame, in which the microturbulence is quasi-magnetostatic, thus allowing the description of the particle scattering to be greatly simplified. Finally, we analyze the influence of a neutron ejecta propagating upstream of a gamma-ray burst shock. For each study, our model predictions are substantiated by state-of-the-art PIC simulations. particules.
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 Shock Waves in Condensed Matter 1983 written by J.R. Asay and published by Elsevier. This book was released on 2012-12-02 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shock Waves in Condensed Matter – 1983 covers the proceedings of the American Physical Society Topical Conference, held in Santa Fe, New Mexico on July 18-21, 1983. The book focuses on the response of matter to dynamic high pressure and temperature. The selection first elaborates on the review of theoretical calculations of phase transitions and comparisons with experimental results; theoretical and experimental studies of shock-compressed benzene and polybutene; and theory of the iron equation of state and melting curve to very high pressures. The text then ponders on nonhydrostatic effects in stress-wave induced phase transformation of calcite; Bauschinger effect model suitable for use in large computer codes; and strain rate sensitivity prediction for porous bed compaction. The manuscript takes a look at flaw nucleation and energetics of dynamic fragmentation, shock loading behavior of fused quartz, and aluminum damage simulation in high-velocity impact. Shock wave diagnostics by time-resolved infrared radiometry and non-linear Raman spectroscopy; Raman scattering temperature measurement behind a shock wave; and experiments and simulation on laser-driven shock wave evolution in aluminum targets are also discussed. The selection is a dependable reference for scientists and readers interested in the response of matter when exposed to dynamic high pressure and temperature.
Download or read book Experimental Methods of Shock Wave Research written by Ozer Igra and published by Springer. This book was released on 2015-11-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive and carefully edited volume presents a variety of experimental methods used in Shock Waves research. In 14 self contained chapters this 9th volume of the “Shock Wave Science and Technology Reference Library” presents the experimental methods used in Shock Tubes, Shock Tunnels and Expansion Tubes facilities. Also described is their set-up and operation. The uses of an arc heated wind tunnel and a gun tunnel are also contained in this volume. Whenever possible, in addition to the technical description some typical scientific results obtained using such facilities are described. Additionally, this authoritative book includes techniques for measuring physical properties of blast waves and laser generated shock waves. Information about active shock wave laboratories at different locations around the world that are not described in the chapters herein is given in the Appendix, making this book useful for every researcher involved in shock/blast wave phenomena.
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 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:
