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ALE-MHD TECHNIQUE FOR MODELING THREE-DIMENSIONAL MAGNETIC IMPLOSION OF A LINER.
- Source :
- Mathematica Montisnigri; 2021, Vol. 50, p119-139, 21p
- Publication Year :
- 2021
-
Abstract
- The article is devoted to the methodology for modeling current-carrying plasma in a Z-pinch studied in pulsed-power experiments. We discuss simulation performed via moving Lagrangian-Euler difference grid. The difference scheme approximating the hydrodynamic equations of a high-temperature medium possesses a "complete conservation" property and includes energy balances between the plasma components taking into account electromagnetic field - matter interaction and conductive (electronic, ionic) as well as radiative heat transfer. Numerical experiments provide quantitative estimates of physical effects which lead to essential distortions of a plasma shell during its magnetically-driven implosion. Performed simulations show the effect of instabilities on the final pinch structure, mainly, the hydrodynamic Rayleigh-Taylor instability and instability of a temperature-inhomogeneous plasma. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03542238
- Volume :
- 50
- Database :
- Complementary Index
- Journal :
- Mathematica Montisnigri
- Publication Type :
- Academic Journal
- Accession number :
- 151670741
- Full Text :
- https://doi.org/10.20948/mathmontis-2021-50-11