Download or read book Field Reversed Configuration Formation Simulations with MACH2 written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Field Reversed Configuration (FRC) plasma is formed by applying a modest magnetic bias field to a gas, then ionizing the gas, and quickly applying a larger field of opposite polarity. The theta pinch that results can produce a magnetically insulated plasma of hundreds of electron volts in temperature. Simulations of this experiment can now be performed using the 2 1/2-dimensional magnetohydrodynamic (MHD) code MACH2. This report describes the modifications to the code employed and simulations performed to test the model that explores three different anomalous resistivity models and three different initial densities for one of those models.
Download or read book 35th AIAA Plasmadynamics and Lasers Conference 04 2155 04 2369 written by and published by . This book was released on 2004 with total page 514 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 1991-10 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotational Instabilities in the Field Reversed Configuration Results of Hybrid Simulations written by Douglas S. Harned and published by . This book was released on 1982 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Trends in International Fusion Research written by Charles D. Orth and published by NRC Research Press. This book was released on 2007 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FRC Formation and Trapping by Counter Injection for MTF Liner Implosions written by and published by . This book was released on 2002 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new simplified design is being developed for injecting and trapping Field-Reversed Configurations (FRCs) into liners, which is compatible with the energetic liner implosions of interest for Magnetized Target Fusion (MTF). Conical theta pinches that inject from each end of the liner region are proposed. The conical angle can be chosen to make axial translation out of the conical theta pinch into the liner region occur on approximately the same time scale as radial compression. Thus no crowbar switch is needed for the high-voltage fast-rising current pulse. The toroidal field from conical theta-pinch injection and/or Z-pinch preionization should rapidly annihilate upon merging of the two oppositely directed FRCs. Two dc coils in a Helmholtz-like configuration are all that are needed to serve the functions of cusp, translation, and mirror fields for trapping in the liner. The mirror strength required for trapping is not as critical as when using onesided injection because the merging FRCs have no net momentum when they collide. Previously observed damping of axial kinetic energy suggests that viscous damping parallel to B 'is strong for FRCs with mfp comparable to FRC length, and conversion of directed energy to thermal energy should occur on a time scale comparable to the injection time. The electrical/mechanical details will be described, accompanied by numerical simulations of FRC formation using the MACH2 numerical code.
Download or read book IEEE Conference Record abstracts written by and published by . This book was released on 1989 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Experimental Studies of Field reversed Configurations written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The FRX-C/T formation region has been enlarged in diameter by 50%, and quasi-steady cusp coils have been installed to compare tearing and non-tearing formation. FRCs with significantly larger poloidal flux (less than or equal to8 mWb) and s (less than or equal to4) have been formed. However, their flux confinement was degraded compared with earlier FRX-C results. The n = 2 rotational instability has been completely suppressed on translated FRCs in FRX-C/T. Nearly equal stabilization thresholds were observed for straight and helical quadrupole fields, in contrast with another experiment.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Record Abstracts written by and published by . This book was released on 1988 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 36th AIAA ASME SAE ASEE Joint Propulsion Conference Exhibit 2000 3350 2000 3399 written by and published by . This book was released on 2000 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 40th AIAA ASME SAE ASEE Joint Propulsion Conference Exhibit July 11 14 2004 Fort Lauderdale FL 04 3306 04 3349 written by and published by . This book was released on 2004 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for 1966 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1966 with total page 2088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Megagauss Physics and Technology written by Peter J. Turchi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: The generation and use of megagauss magnetic fields have been subjects of research and development in laboratories around the world for over a quarter of a century. Research goals have included the development of compact, short-pulse, electrical power sources and the production of ultrahigh magnetic field strengths over significant experimental volumes. Energies measured in megajoules, currents in megamperes and timescales of microseconds are not uncommon in such work. Phase changes, insulator breakdowns, and local des truction of the apparatus are also frequently encountered. Some efforts have involved the use of high explosive systems, developing methodologies rather distinct from those of a normal physics laboratory. Manipulation of magnetic flux to exchange energy between high speed, electrically conducting flows and high strength electromagnetic fields remains, of course, a basic interaction of classical physics. The remoteness of the necessary experimental sites (at least in many instances) and the various national concerns for security of defense-related research have often limited the flow of information between investigators of separate organizations, working in common areas of technical concern. Occa sionally, however, it has been possible for the community of scientists and engineers engaged in work on high magnetic fields and related high energy den sity systems to gather together and exchange results and plans, successes and failures. The first such international gathering was in 1965 at the Conference on Megagauss Magnetic Field Generation by Explosives and Related Experi ments, Frascati, Italy.
Download or read book An Assessment of the Prospects for Inertial Fusion Energy written by National Research Council and published by National Academies Press. This book was released on 2013-07-05 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential for using fusion energy to produce commercial electric power was first explored in the 1950s. Harnessing fusion energy offers the prospect of a nearly carbon-free energy source with a virtually unlimited supply of fuel. Unlike nuclear fission plants, appropriately designed fusion power plants would not produce the large amounts of high-level nuclear waste that requires long-term disposal. Due to these prospects, many nations have initiated research and development (R&D) programs aimed at developing fusion as an energy source. Two R&D approaches are being explored: magnetic fusion energy (MFE) and inertial fusion energy (IFE). An Assessment of the Prospects for Inertial Fusion Energy describes and assesses the current status of IFE research in the United States; compares the various technical approaches to IFE; and identifies the scientific and engineering challenges associated with developing inertial confinement fusion (ICF) in particular as an energy source. It also provides guidance on an R&D roadmap at the conceptual level for a national program focusing on the design and construction of an inertial fusion energy demonstration plant.
