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273 results on '"Rose, D. V."'

1. Investigation of a parametric instability between ELF and VLF modes driven by antennas immersed in a cold, magnetized plasma

Author

Main, D., Sotnikov, V., Caplinger, J., and Rose, D. V.

Subjects
Physics - Plasma Physics
Abstract

We have studied the behavior of a VLF, ELF and combined ELF/VLF antenna immersed in a cold, magnetized plasma using a fully kinetic, three dimensional Particle-in-Cell simulation code called Large Scale Plasma (LSP). All the antennas are modeled as magnetic dipoles ($\rho_{ant}=0$) and are assigned a time varying current density within a finite sized current loop. The VLF antenna is driven at 10 Amps with a frequency ($\omega_{VLF}$) greater than the lower hybrid frequency ($\omega_{LH}$), while the ELF antenna is driven at 3 Amps with a frequency ($\omega_{ELF}$) less than $\omega_{LH}$. The combined ELF/VLF antenna (which we call a parametric antenna) includes both antennas driven simultaneously in the same simulation domain. We show that the parametric antenna non-linearly excites electromagnetic (EM) Whistler waves to a greater extent than the VLF antenna alone. We also show that the parametric excitation of EM Whistler waves leads to greater emitted EM power (measured in Watts) compared with a VLF antenna alone., Comment: 13 pages, 5 figures, to be submitted to PRL

Published
2017

2. Particle-in-cell simulations of laser beat-wave magnetization of dense plasmas

Author

Welch, D. R., Genoni, T. C., Thoma, C., Rose, D. V., and Hsu, S. C.

Subjects
Physics - Plasma Physics
Abstract

The interaction of two lasers with a difference frequency near that of the ambient plasma frequency produces beat waves that can resonantly accelerate thermal electrons. These beat waves can be used to drive electron current and thereby embed magnetic fields into the plasma [D. R. Welch et al., Phys. Rev. Lett. 109, 225002 (2012)]. In this paper, we present two-dimensional particle-in-cell simulations of the beat-wave current-drive process over a wide range of angles between the injected lasers, laser intensities, and plasma densities. We discuss the application of this technique to the magnetization of dense plasmas, motivated in particular by the problem of forming high-beta plasma targets in a standoff manner for magneto-inertial fusion. The feasibility of a near-term experiment embedding magnetic fields using lasers with micron-scale wavelengths into a $\sim 10^{18}$-cm$^{-3}$-density plasma is assessed., Comment: 18 pages, 10 figures, submitted for publication

Published
2014
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3. Simulations of Magnetic Field Generation in Unmagnetized Plasmas via Beat Wave Current Drive

Author

Welch, D. R., Genoni, T. C., Thoma, C., Bruner, N., Rose, D. V., and Hsu, S. C.

Subjects
Physics - Plasma Physics
Abstract

This work describes the scientific basis and associated simulation results for the magnetization of an unmagnetized plasma via beat wave current drive. Two-dimensional electromagnetic particle-in-cell simulations have been performed for a variety of angles between the injected waves to demonstrate beat wave generation in agreement with theoretical predictions of the beat-wave wave vector and saturation time, revealing new 2D effects. The simulations clearly demonstrate electron acceleration by the beat waves and resultant current drive and magnetic field generation. The basic process depends entirely on the angle between the parent waves and the ratio of the beat-wave phase velocity to the electron thermal velocity. The wave to magnetic energy conversion efficiency of the cases examined is as high as 0.2%. The technique could enable novel plasma experiments in which the use of magnetic coils is infeasible., Comment: 5 pages, 4 figures, accepted by Physical Review Letters (Oct. 15, 2012)

Published
2012
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11. Review of pulsed power-driven high energy density physics research on Z at Sandia

Author

Sinars, D. B., primary, Sweeney, M. A., additional, Alexander, C. S., additional, Ampleford, D. J., additional, Ao, T., additional, Apruzese, J. P., additional, Aragon, C., additional, Armstrong, D. J., additional, Austin, K. N., additional, Awe, T. J., additional, Baczewski, A. D., additional, Bailey, J. E., additional, Baker, K. L., additional, Ball, C. R., additional, Barclay, H. T., additional, Beatty, S., additional, Beckwith, K., additional, Bell, K. S., additional, Benage, J. F., additional, Bennett, N. L., additional, Blaha, K., additional, Bliss, D. E., additional, Boerner, J. J., additional, Bourdon, C. J., additional, Branch, B. A., additional, Brown, J. L., additional, Campbell, E. M., additional, Campbell, R. B., additional, Chacon, D. G., additional, Chandler, G. A., additional, Chandler, K., additional, Christenson, P. J., additional, Christison, M. D., additional, Christner, E. B., additional, Clay, R. C., additional, Cochrane, K. R., additional, Colombo, A. P., additional, Cook, B. M., additional, Coverdale, C. A., additional, Cuneo, M. E., additional, Custer, J. S., additional, Dasgupta, A., additional, Davis, J.-P., additional, Desjarlais, M. P., additional, Dolan, D. H., additional, Douglass, J. D., additional, Dunham, G. S., additional, Duwal, S., additional, Edens, A. D., additional, Edwards, M. J., additional, Evstatiev, E. G., additional, Farfan, B. G., additional, Fein, J. R., additional, Field, E. S., additional, Fisher, J. A., additional, Flanagan, T. M., additional, Flicker, D. G., additional, Furnish, M. D., additional, Galloway, B. R., additional, Gard, P. D., additional, Gardiner, T. A., additional, Geissel, M., additional, Giuliani, J. L., additional, Glinsky, M. E., additional, Gomez, M. R., additional, Gomez, T., additional, Grim, G. P., additional, Hahn, K. D., additional, Haill, T. A., additional, Hamlin, N. D., additional, Hammer, J. H., additional, Hansen, S. B., additional, Hanshaw, H. L., additional, Harding, E. C., additional, Harvey-Thompson, A. J., additional, Headley, D., additional, Herrmann, M. C., additional, Hess, M. H., additional, Highstrete, C., additional, Hurricane, O. A., additional, Hutsel, B. T., additional, Jennings, C. A., additional, Johns, O. M., additional, Johnson, D., additional, Johnston, M. D., additional, Jones, B. M., additional, Jones, M. C., additional, Jones, P. A., additional, Kalita, P. E., additional, Kamm, R. J., additional, Kellogg, J. W., additional, Kiefer, M. L., additional, Kimmel, M. W., additional, Knapp, P. F., additional, Knudson, M. D., additional, Kreft, A., additional, Laity, G. R., additional, Lake, P. W., additional, Lamppa, D. C., additional, Langston, W. L., additional, Lash, J. S., additional, LeChien, K. R., additional, Leckbee, J. J., additional, Leeper, R. J., additional, Leifeste, G. T., additional, Lemke, R. W., additional, Lewis, W., additional, Lewis, S. A., additional, Loisel, G. P., additional, Looker, Q. M., additional, Lopez, A. J., additional, Lucero, D. J., additional, MacLaren, S. A., additional, Magyar, R. J., additional, Mangan, M. A., additional, Martin, M. R., additional, Mattsson, T. R., additional, Matzen, M. K., additional, Maurer, A. J., additional, Mazarakis, M. G., additional, McBride, R. D., additional, McLean, H. S., additional, McCoy, C. A., additional, McKee, G. R., additional, McKenney, J. L., additional, Miles, A. R., additional, Mills, J. A., additional, Mitchell, M. D., additional, Moore, N. W., additional, Myers, C. E., additional, Nagayama, T., additional, Natoni, G., additional, Owen, A. C., additional, Patel, S., additional, Peterson, K. J., additional, Pointon, T. D., additional, Porter, J. L., additional, Porwitzky, A. J., additional, Radovich, S., additional, Raman, K. S., additional, Rambo, P. K., additional, Reinhart, W. D., additional, Robertson, G. K., additional, Rochau, G. A., additional, Root, S., additional, Rose, D. V., additional, Rovang, D. C., additional, Ruiz, C. L., additional, Ruiz, D. E., additional, Sandoval, D., additional, Savage, M. E., additional, Sceiford, M. E., additional, Schaeuble, M. A., additional, Schmit, P. F., additional, Schollmeier, M. S., additional, Schwarz, J., additional, Seagle, C. T., additional, Sefkow, A. B., additional, Seidel, D. B., additional, Shipley, G. A., additional, Shores, J., additional, Shulenburger, L., additional, Simpson, S. C., additional, Slutz, S. A., additional, Smith, I. C., additional, Speas, C. S., additional, Specht, P. E., additional, Speir, M. J., additional, Spencer, D. C., additional, Springer, P. T., additional, Steiner, A. M., additional, Stoltzfus, B. S., additional, Stygar, W. A., additional, Ward Thornhill, J., additional, Torres, J. A., additional, Townsend, J. P., additional, Tyler, C., additional, Vesey, R. A., additional, Wakeland, P. E., additional, Webb, T. J., additional, Weinbrecht, E. A., additional, Weis, M. R., additional, Welch, D. R., additional, Wise, J. L., additional, Wu, M., additional, Yager-Elorriaga, D. A., additional, Yu, A., additional, and Yu, E. P., additional

Published
2020
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12. Current transport and loss mechanisms in the Z accelerator

Author

Bennett, N., primary, Welch, D. R., additional, Jennings, C. A., additional, Yu, E., additional, Hess, M. H., additional, Hutsel, B. T., additional, Laity, G., additional, Moore, J. K., additional, Rose, D. V., additional, Peterson, K., additional, and Cuneo, M. E., additional

Published
2019
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15. A Primer on Pulsed Power and Linear Transformer Drivers for High Energy Density Physics Applications

Author

McBride, R. D., primary, Stygar, W. A., additional, Cuneo, M. E., additional, Sinars, D. B., additional, Mazarakis, M. G., additional, Leckbee, J. J., additional, Savage, M. E., additional, Hutsel, B. T., additional, Douglass, J. D., additional, Kiefer, M. L., additional, Oliver, B. V., additional, Laity, G. R., additional, Gomez, M. R., additional, Yager-Elorriaga, D. A., additional, Patel, S. G., additional, Kovalchuk, B. M., additional, Kim, A. A., additional, Gourdain, P.-A., additional, Bland, S. N., additional, Portillo, S., additional, Bott-Suzuki, S. C., additional, Beg, F. N., additional, Maron, Y., additional, Spielman, R. B., additional, Rose, D. V., additional, Welch, D. R., additional, Zier, J. C., additional, Schumer, J. W., additional, Greenly, J. B., additional, Covington, A. M., additional, Steiner, A. M., additional, Campbell, P. C., additional, Miller, S. M., additional, Woolstrum, J. M., additional, Ramey, N. B., additional, Shah, A. P., additional, Sporer, B. J., additional, Jordan, N. M., additional, Lau, Y. Y., additional, and Gilgenbach, R. M., additional

Published
2018
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18. Transmission-line-circuit model of an 85-TW, 25-MA pulsed-power accelerator

Author

Hutsel, B. T., primary, Corcoran, P. A., additional, Cuneo, M. E., additional, Gomez, M. R., additional, Hess, M. H., additional, Hinshelwood, D. D., additional, Jennings, C. A., additional, Laity, G. R., additional, Lamppa, D. C., additional, McBride, R. D., additional, Moore, J. K., additional, Myers, A., additional, Rose, D. V., additional, Slutz, S. A., additional, Stygar, W. A., additional, Waisman, E. M., additional, Welch, D. R., additional, and Whitney, B. A., additional

Published
2018
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19. Electromagnetic wave propagation through an overdense magnetized collisional plasma layer.

Author

Thoma, C., Rose, D. V., Miller, C. L., Clark, R. E., and Hughes, T. P.

Subjects
*TRANSMISSION of electromagnetic waves, *PLASMA gases, *HYPERSONIC aerodynamics, *POLARIZATION of electromagnetic waves, *PLASMA waveguides
Abstract

The results of investigations into the feasibility of using a magnetic window to propagate electromagnetic waves through a finite-sized overdense plasma slab are described. We theoretically calculate the transmission coefficients for right- and left-handed circularly polarized plane waves through a uniform magnetized plasma slab. Using reasonable estimates for the plasma properties expected to be found in the ionized shock layer surrounding a hypersonic aircraft traveling in the earth’s upper atmosphere (radio blackout conditions), and assuming a 1 GHz carrier frequency for the radio communications channel, we find that the required magnetic field for propagation of right-handed circularly polarized, or whistler, waves is on the order of a few hundred gauss. Transmission coefficients are calculated as a function of sheath thickness and are shown to be quite sensitive to the electron collision frequency. One-dimensional particle-in-cell simulations are shown to be in good agreement with the theory. These simulations also demonstrate that Ohmic heating of the electrons can be considerable. Two- and three-dimensional particle-in-cell simulations using a simplified waveguide and antenna model illustrate the same general transmission behavior as the theory and one-dimensional simulations. In addition, a net focusing effect due to the plasma is also observed in two and three dimensions. These simulations can be extended to design and analyze more realistic waveguide and antenna models. [ABSTRACT FROM AUTHOR]

Published
2009
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20. Overview of Theory and Modeling in the Heavy Ion Fusion Virtual National Laboratory

Author

Davidson, R. C., primary, Kaganovich, I. D., additional, Lee, W. W., additional, Qin, H., additional, Startsev, E. A., additional, Tzenov, S, additional, Friedman, A, additional, Barnard, J J, additional, Cohen, R H, additional, Grote, D P, additional, Lund, S M, additional, Sharp, W M, additional, Henestroza, E, additional, Lee, E P, additional, Yu, S S, additional, Vay, J -L, additional, Welch, D R, additional, Rose, D V, additional, Olson, C L, additional, and Celata, C. M., additional

Published
2003
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21. Coupled particle-in-cell and Monte Carlo transport modeling of intense radiographic sources.

Author

Rose, D. V., Welch, D. R., Oliver, B. V., Clark, R. E., Johnson, D. L., Maenchen, J. E., Menge, P. R., Olson, C. L., and Rovang, D. C.

Subjects
*DIODES, *ELECTRON transport, *ELECTROMAGNETISM
Abstract

Dose-rate calculations for intense electron-beam diodes using particle-in-cell (PIC) simulations along with Monte Carlo electron/photon transport calculations are presented. The electromagnetic PIC simulations are used to model the dynamic operation of the rod-pinch and immersed-B diodes. These simulations include algorithms for tracking electron scattering and energy loss in dense materials. The positions and momenta of photons created in these materials are recorded and separate Monte Carlo calculations are used to transport the photons to determine the dose in far-field detectors. These combined calculations are used to determine radiographer equations (dose scaling as a function of diode current and voltage) that are compared directly with measured dose rates obtained on the SABRE generator at Sandia National Laboratories. [ABSTRACT FROM AUTHOR]

Published
2002
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22. Space-charge limited currents in coaxial diodes with electron backscatter.

Author

Oliver, B. V., Genoni, T. C., Rose, D. V., and Welch, D. R.

Subjects
ELECTRON scattering, DIODES, ANODES
Abstract

The effect of backscattered electrons on space-charge limited currents of cylindrical (coaxial) diodes with anode center conductors is studied. The scattered electrons are parametrized by a fractional current density α and fractional energy β of the incident electrons. For bipolar flow, current enhancement factors of 2.5 are calculated for α, β=0.5. Comparison of the model equations to one-dimensional particle-in-cell simulations with fully integrated Monte Carlo scattering algorithms demonstrates very good agreement for a range of energies and anode materials. In the absence of backscattering, the bipolar diode impedance decreases for increasing ratio of cathode to anode radius r[sub c]/r[sub a] for ratios greater than about 20. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001
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25. Numerical simulation of limiting currents for transport of intense relativistic electron beams in conducting waveguides.

Author

Rose, D. V. and Guillory, J. U.

Subjects
*SPACE charge, *ELECTRON beams, *PIPE, *PARTICLES (Nuclear physics)
Abstract

Presents a study that investigated the space-charge limiting current for an electron beam injected into a grounded metallic pipe with a particle-in-cell code. Information on the limiting current theory; Numerical simulation; Conclusions.

Published
1995
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26. Effect of time-of-flight bunching on efficiency of light-ion-beam inertial-confinement-fusion transport schemes.

Author

Ottinger, P. F., Rose, D. V., and Olson, C. L.

Subjects
*INERTIAL confinement fusion, *CONTROLLED fusion, *ENERGY transfer
Abstract

Focuses on a study which proposed the Laboratory Microfusion Facility (LMF) for the analysis of high-gain, high-yield intertial-confinement-fusion targets. Description of the light-on LMF approach; Definition and calculation of the energy transport efficiency; Identification of the factors affecting the overall system efficiency.

Published
1994
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28. Conceptual designs of two petawatt-class pulsed-power accelerators for high-energy-density-physics experiments

Author

Stygar, W. A., primary, Awe, T. J., additional, Bailey, J. E., additional, Bennett, N. L., additional, Breden, E. W., additional, Campbell, E. M., additional, Clark, R. E., additional, Cooper, R. A., additional, Cuneo, M. E., additional, Ennis, J. B., additional, Fehl, D. L., additional, Genoni, T. C., additional, Gomez, M. R., additional, Greiser, G. W., additional, Gruner, F. R., additional, Herrmann, M. C., additional, Hutsel, B. T., additional, Jennings, C. A., additional, Jobe, D. O., additional, Jones, B. M., additional, Jones, M. C., additional, Jones, P. A., additional, Knapp, P. F., additional, Lash, J. S., additional, LeChien, K. R., additional, Leckbee, J. J., additional, Leeper, R. J., additional, Lewis, S. A., additional, Long, F. W., additional, Lucero, D. J., additional, Madrid, E. A., additional, Martin, M. R., additional, Matzen, M. K., additional, Mazarakis, M. G., additional, McBride, R. D., additional, McKee, G. R., additional, Miller, C. L., additional, Moore, J. K., additional, Mostrom, C. B., additional, Mulville, T. D., additional, Peterson, K. J., additional, Porter, J. L., additional, Reisman, D. B., additional, Rochau, G. A., additional, Rochau, G. E., additional, Rose, D. V., additional, Rovang, D. C., additional, Savage, M. E., additional, Sceiford, M. E., additional, Schmit, P. F., additional, Schneider, R. F., additional, Schwarz, J., additional, Sefkow, A. B., additional, Sinars, D. B., additional, Slutz, S. A., additional, Spielman, R. B., additional, Stoltzfus, B. S., additional, Thoma, C., additional, Vesey, R. A., additional, Wakeland, P. E., additional, Welch, D. R., additional, Wisher, M. L., additional, and Woodworth, J. R., additional

Published
2015
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33. Transmission Line and Electromagnetic Models of the Mykonos-2 Accelerator

Author

NAVAL RESEARCH LAB MONTEREY CA, Madrid, E A, Miller, C L, Rose, D V, Welch, D R, Clark, R E, Mostrom, C B, Stygar, W A, Savage, M E, Hinshelwood, D D, LeChien, K R, NAVAL RESEARCH LAB MONTEREY CA, Madrid, E A, Miller, C L, Rose, D V, Welch, D R, Clark, R E, Mostrom, C B, Stygar, W A, Savage, M E, Hinshelwood, D D, and LeChien, K R

Abstract

Mykonos is a linear transformer driver (LTD) pulsed power accelerator currently undergoing testing at Sandia National Laboratories. Mykonos-2, the initial configuration, includes two 1-MA, 200-kV LTD cavities driving a water-filled transmission line terminated by a resistive load. Transmission line and 3D electromagnetic (EM) simulation models of high-current LTD cavities have been developed [D.V. Rose et al. Phys. Rev. ST Accel. Beams 13, 90401 (2010)]. These models have been used to develop an equivalent two-cavity transmission line model of Mykonos-2 using the BERTHA transmission line code. The model explicitly includes 40 bricks per cavity and detailed representations of the water-filled transmission line and resistive load. (A brick consists of two capacitors and a switch connected in series.) This model is compared to 3D EM simulations of the entire accelerator including detailed representations of the individual capacitors and switches in each cavity. Good agreement is obtained between the two simulation models and both models are in good agreement with preliminary data from Mykonos-2., See also ADM002371. 2013 IEEE Pulsed Power Conference, Digest of Technical Papers 1976-2013, and Abstracts of the 2013 IEEE International Conference on Plasma Science. IEEE International Pulsed Power Conference (19th). Held in San Francisco, CA on 16-21 June 2013., The original document contains color images.

Published
2013

36. Temporally Shaped Current Pulses on a Two-Cavity Linear Transformer Driver System

Author

SANDIA NATIONAL LABS ALBUQUERQUE NM, Savage, M E, Mazarakis, M G, LeChien, K R, Stoltzfus, B S, Stygar, W A, Fowler, W E, Madrid, E A, Miller, C L, Rose, D V, SANDIA NATIONAL LABS ALBUQUERQUE NM, Savage, M E, Mazarakis, M G, LeChien, K R, Stoltzfus, B S, Stygar, W A, Fowler, W E, Madrid, E A, Miller, C L, and Rose, D V

Abstract

An important application for low impedance pulsed power drivers is creating high pressures for shock compression of solids. These experiments are useful for studying material properties under kilobar to megabar pressures. The Z driver at Sandia National Laboratories has been used for such studies on a variety of materials, including heavy water, diamond, and tantalum, to name a few. In such experiments, it is important to prevent shock formation in the material samples. Shocks can form as the sound speed increases with loading; at some depth in the sample a pressure significantly higher than the surface pressure can result. The optimum pressure pulse shape to prevent such shocks depends on the test material and the sample thickness, and is generally not a simple sinusoidal-shaped current as a function of time. A system that can create a variety of pulse shapes would be desirable for testing various materials and sample thicknesses. A large number of relatively fast pulses, combined, could create the widest variety of pulse shapes. Linear transformer driver systems, whose cavities consist of many parallel capacitor-switch circuits, could have considerable agility in pulse shape. We will show results from initial experiments in pulse shaping on a system with two inductively isolated cavities in series. Each cavity contains forty pairs of high voltage capacitors and forty gas-insulated spark gap switches. The capacitors are arranged in a bipolar configuration; the spark gap switches must withstand twice the capacitor voltage. A pulse applied to the switch trigger electrodes initiate closure of each switch. We have arranged triggering in groups of ten switches in each cavity, for a total of eight separate trigger points in the system. The fundamental rise time of each capacitor circuit is roughly 70 nanoseconds; this defines the fastest possible output pulse transition time. The pulse rise time can be made longer., See also ADM002371. 2013 IEEE Pulsed Power Conference, Digest of Technical Papers 1976-2013, and Abstracts of the 2013 IEEE International Conference on Plasma Science. IEEE International Pulsed Power Conference (19th). Held in San Francisco, CA on 16-21 June 2013., The original document contains color images.

Published
2011

37. Jet Interactions with Magnetized Clouds. Preliminary Results from PIC Code and Large-Scale Hydrodynamic Simulations for AGN Jets

Author

NAVAL RESEARCH LAB WASHINGTON DC SPACE SCIENCE DIV, Beall, J. H., Guillory, J., Rose, D. V., NAVAL RESEARCH LAB WASHINGTON DC SPACE SCIENCE DIV, Beall, J. H., Guillory, J., and Rose, D. V.

Abstract

When astrophysical jets interact with the ambient medium through which they propagate, they lose energy and entrain (and accelerate) that medium. Recent observations of such interactions, including time-lapsed "movies" of both AGN and microquasar jets, can be used to inform models of the jet-ambient-medium interactions. In this paper, we discuss some aspects of these jets, including the mechanisms of their propagation, their constitution and the non-linear character of their energy loss via plasma processes. We also present for the first time PIC code simulations to show momentum transfer via caviton formation as a result of plasma processes. An illustration of the microphysics of the interaction of a proton-electron beam with an ambient magnetic field is also presented., Published in the Journal Memorie della Societa Astronomica Italiana (Mutlifrequency behavior of high energy cosmic sources), v81 n1 p404, 2010.

Published
2010

38. Analysis of EAW and ReComm Communication Schemes for Hypersonic Flight: Status Report 1

Author

VOSS SCIENTIFIC LLC ALBUQUERQUE NM, Rose, D. V., Thoma, C., Sotnikov, V., VOSS SCIENTIFIC LLC ALBUQUERQUE NM, Rose, D. V., Thoma, C., and Sotnikov, V.

Abstract

We summarize progress in our analysis of proposed communication schemes for hypersonic vehicles in flight. Investigations into the electron-acoustic wave (EAW) communication scheme have yielded a dispersion analysis indicating that EAW modes can be generated and propagate in the plasma layer [D. V. Rose et al., Voss Sci. Rep. No. VSL-0737, Nov. 2007]. These modes can be coupled to electromagnetic waves at the plasma layer boundary for the assumption of a sharp density boundary. A detailed analysis of the wave transformation coefficients at this boundary layer has been completed [D. V. Rose et al., Voss Sci. Rep. No. VSL-0832, Dec. 2008]. Here we report on new particle-in-cell simulations of EAW generation and propagation in a two-temperature plasma. The simulation model is being developed to test the stability and the transformation efficiencies of the waves in plasma conditions anticipated for hypersonic vehicles in sustained upper atmospheric flight. In addition, we summarize progress in our analysis of the ReComm scheme [M. Keidar et al., J. Spacecraft and Rockets 45, 445 (2008)], focusing on extending our previous 1D computational model [C. Thoma and D. V. Rose, Voss Scientific Report No. VSL-0816, July 2008] to longer time and length scales.

Published
2009

41. Numerical simulations of a post-hole convolute driven by high power magnetically insulated transmission lines: Analysis of current loss in steady-state and time-dependent operating modes

Author

Madrid, E. A., primary, Welch, D. R., additional, Clark, R. E., additional, Rose, D. V., additional, Mostrom, C. B., additional, Stygar, W. A., additional, Cuneo, M. E., additional, Gomez, M. R., additional, Hughes, T. P., additional, Pointon, T. D., additional, and Seidel, D. B., additional

Published
2013
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