Non-linear magnetohydrodynamic simulations of plasma instabilities from pellet injection in Large Helical Device plasma

Non-linear magnetohydrodynamic simulations of plasma instabilities from pellet injection in Large Helical Device plasma

The effect of pellets on the global magnetohydrodynamic (MHD) dynamics of the Large Helical Device (LHD), which is a large superconducting heliotron in Japan, has been analyzed with the MIPS code. A pellet ablation model based on the neutral gas shielding model has been implemented. Excitation of MH...

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Veröffentlicht in:Plasma physics and controlled fusion 2019-08, Vol.61 (9), p.95014
Hauptverfasser: Futatani, Shimpei, Suzuki, Yasuhiro
Format: Artikel
Sprache:eng
Schlagworte:
Física
Magnetohidrodinàmica
Magnetohydrodynamics
MHD
Pellet
Plasma (Gasos ionitzats)
Plasma (Ionized gases)
Simulation
Stellarator
Àrees temàtiques de la UPC
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Zusammenfassung:The effect of pellets on the global magnetohydrodynamic (MHD) dynamics of the Large Helical Device (LHD), which is a large superconducting heliotron in Japan, has been analyzed with the MIPS code. A pellet ablation model based on the neutral gas shielding model has been implemented. Excitation of MHD modes by the three-dimensionally localized pressure perturbation caused by the pellet injection has been observed. The dependence of the MHD-instabilities on the pellet size has been analyzed.
ISSN:0741-3335
1361-6587
DOI:10.1088/1361-6587/ab34aa