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Title: On the structure of plasma liners for plasma jet induced magnetoinertial fusion

Abstract

The internal structure and self-collapse properties of plasma liners, formed by the merger of argon plasma jets, have been studied via 3-dimensional numerical simulations using the FronTier code. We have shown that the jets merger process is accomplished through a cascade of oblique shock waves that heat the liner and reduce its Mach number. Oblique shock waves and the adiabatic compression heating have led to the 10 times reduction of the self-collapse pressure of a 3-dimensional argon liner compared to a spherically symmetric liner with the same pressure and density profiles at the merging radius. We have also observed a factor of 10 variations of pressure and density in the leading edge of the liner along spherical surfaces close to the interaction with potential plasma targets. Such a non-uniformity of imploding plasma liners presents problems for the stability of targets during compression.

Authors:
;  [1];  [1];  [2]
  1. Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, New York 11794 (United States)
  2. General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)
Publication Date:
OSTI Identifier:
22113454
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 20; Journal Issue: 2; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ADIABATIC COMPRESSION HEATING; ARGON; COMPUTERIZED SIMULATION; INTERACTIONS; MACH NUMBER; NUMERICAL ANALYSIS; PLASMA; PLASMA JETS; PLASMA SIMULATION; SHOCK WAVES; STABILITY; SURFACES; SYMMETRY; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

Kim, Hyoungkeun, Zhang, Lina, Samulyak, Roman, Computational Science Center, Brookhaven National Laboratory, Upton, New York 11973, and Parks, Paul. On the structure of plasma liners for plasma jet induced magnetoinertial fusion. United States: N. p., 2013. Web. doi:10.1063/1.4789887.
Kim, Hyoungkeun, Zhang, Lina, Samulyak, Roman, Computational Science Center, Brookhaven National Laboratory, Upton, New York 11973, & Parks, Paul. On the structure of plasma liners for plasma jet induced magnetoinertial fusion. United States. https://doi.org/10.1063/1.4789887
Kim, Hyoungkeun, Zhang, Lina, Samulyak, Roman, Computational Science Center, Brookhaven National Laboratory, Upton, New York 11973, and Parks, Paul. 2013. "On the structure of plasma liners for plasma jet induced magnetoinertial fusion". United States. https://doi.org/10.1063/1.4789887.
@article{osti_22113454,
title = {On the structure of plasma liners for plasma jet induced magnetoinertial fusion},
author = {Kim, Hyoungkeun and Zhang, Lina and Samulyak, Roman and Computational Science Center, Brookhaven National Laboratory, Upton, New York 11973 and Parks, Paul},
abstractNote = {The internal structure and self-collapse properties of plasma liners, formed by the merger of argon plasma jets, have been studied via 3-dimensional numerical simulations using the FronTier code. We have shown that the jets merger process is accomplished through a cascade of oblique shock waves that heat the liner and reduce its Mach number. Oblique shock waves and the adiabatic compression heating have led to the 10 times reduction of the self-collapse pressure of a 3-dimensional argon liner compared to a spherically symmetric liner with the same pressure and density profiles at the merging radius. We have also observed a factor of 10 variations of pressure and density in the leading edge of the liner along spherical surfaces close to the interaction with potential plasma targets. Such a non-uniformity of imploding plasma liners presents problems for the stability of targets during compression.},
doi = {10.1063/1.4789887},
url = {https://www.osti.gov/biblio/22113454}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 2,
volume = 20,
place = {United States},
year = {2013},
month = {2}
}