Physics:Tearing mode
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Short description: Plasma instability
In plasma physics, a tearing mode is a plasma instability characterized by field line reconnection and the formation of magnetic islands.[1][2] With islands emerging in the plasma, particles and heat can move from regions that were originally disconnected. Pressure and current density profiles are flattened, causing disruptions.[3] The typical timescale for the growth of a tearing mode the order of 10−1 microsec.[4][5][6]
Types of Tearing mode
- Rayleigh–Taylor instability
- Magnetic reconnection
- Ballooning instability
- Resistive ballooning mode
- Universal instability
- Kelvin–Helmholtz instability
- Disruption instability [7]
- Edge-localized mode
- Transport barrier mode
References
- ↑ "TEARING MODE DYNAMICS IN TOKAMAK PLASMAS". https://farside.ph.utexas.edu/EPEC-documentation/epec.html.
- ↑ Zohm, Hartmut (2015). Magnetohydrodynamic Stability of Tokamaks. Wiley-VCH. pp. 123-157. ISBN 978-3-527-41232-7.
- ↑ Zohm, Hartmut (2015). Magnetohydrodynamic Stability of Tokamks. Wiley-VCH. pp. 159-173. ISBN 978-3-527-41232-7.
- ↑ Seo, Jaemin; Kim, SangKyeun; Jalalvand, Azarakhsh; Conlin, Rory; Rothstein, Andrew; Abbate, Joseph; Erickson, Keith; Wai, Josiah et al. (February 2024). "Avoiding fusion plasma tearing instability with deep reinforcement learning" (in en). Nature 626 (8000): 746–751. doi:10.1038/s41586-024-07024-9. ISSN 1476-4687. PMID 38383624. Bibcode: 2024Natur.626..746S.
- ↑ Shi, Chen; Velli, Marco; Pucci, Fulvia; Tenerani, Anna; Innocenti, Maria Elena (2020-10-01). "Oblique tearing mode instability: guide field and Hall effect". The Astrophysical Journal 902 (2): 142. doi:10.3847/1538-4357/abb6fa. ISSN 0004-637X. Bibcode: 2020ApJ...902..142S.
- ↑ Connor, J. W.; Cowley, S. C.; Hastie, R. J.; Hender, T. C.; Hood, A.; Martin, T. J. (March 1988). "Tearing mode". The Physics of Fluids 31 (3): 577–590. doi:10.1063/1.866840. https://pubs.aip.org/aip/pfl/article-abstract/31/3/577/903632/Tearing-modes-in-toroidal-geometry?redirectedFrom=fulltext.
- ↑ Galishnikova, Alisa K.; Kunz, Matthew W.; Schekochihin, Alexander A. (2022-12-09). "Tearing Instability and Current-Sheet Disruption in the Turbulent Dynamo". Physical Review X 12 (4). doi:10.1103/PhysRevX.12.041027. Bibcode: 2022PhRvX..12d1027G. https://link.aps.org/doi/10.1103/PhysRevX.12.041027.
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