Force-free motion of a cold plasma during the current quench
Abstract
Cold disruptive plasma tends to move during the current quench. Its motion is essentially force-free since the current quench timescale is resistive rather than Alfvénic. In contrast to the hot vertical displacement events, the frozen-in condition is violated in the cold plasma case, and the plasma motion is not governed by magnetic flux conservation but rather by its dissipation. In this paper, we present a numerical model of the cold plasma dynamics. This model predicts electromagnetic loads on the vacuum vessel, the plasma flow and density evolution, and the plasma centroid evolution. Our calculations include poloidal wall currents. Finally, we demonstrate their significant contribution to the force acting on the vacuum vessel.
- Authors:
-
- National Research Centre Kurchatov Inst., Moscow (Russia); National Research Nuclear Univ. MEPhI, Moscow (Russia)
- Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies
- Publication Date:
- Research Org.:
- Univ. of Texas, Austin, TX (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1540251
- Alternate Identifier(s):
- OSTI ID: 1468874
- Grant/Contract Number:
- FG02-04ER54742; SC0016283
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 9; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; physics
Citation Formats
Kiramov, D. I., and Breizman, B. N. Force-free motion of a cold plasma during the current quench. United States: N. p., 2018.
Web. doi:10.1063/1.5046517.
Kiramov, D. I., & Breizman, B. N. Force-free motion of a cold plasma during the current quench. United States. https://doi.org/10.1063/1.5046517
Kiramov, D. I., and Breizman, B. N. Thu .
"Force-free motion of a cold plasma during the current quench". United States. https://doi.org/10.1063/1.5046517. https://www.osti.gov/servlets/purl/1540251.
@article{osti_1540251,
title = {Force-free motion of a cold plasma during the current quench},
author = {Kiramov, D. I. and Breizman, B. N.},
abstractNote = {Cold disruptive plasma tends to move during the current quench. Its motion is essentially force-free since the current quench timescale is resistive rather than Alfvénic. In contrast to the hot vertical displacement events, the frozen-in condition is violated in the cold plasma case, and the plasma motion is not governed by magnetic flux conservation but rather by its dissipation. In this paper, we present a numerical model of the cold plasma dynamics. This model predicts electromagnetic loads on the vacuum vessel, the plasma flow and density evolution, and the plasma centroid evolution. Our calculations include poloidal wall currents. Finally, we demonstrate their significant contribution to the force acting on the vacuum vessel.},
doi = {10.1063/1.5046517},
journal = {Physics of Plasmas},
number = 9,
volume = 25,
place = {United States},
year = {Thu Sep 06 00:00:00 EDT 2018},
month = {Thu Sep 06 00:00:00 EDT 2018}
}
Web of Science
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