Self-Organized Stationary States of Tokamaks
We demonstrate that in a 3D resistive magnetohydrodynamic simulation, for some parameters it is possible to form a stationary state in a tokamak where a saturated interchange mode in the center of the discharge drives a near helical flow pattern that acts to nonlinearly sustain the configuration by...
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| Veröffentlicht in: | Physical review letters 2015-11, Vol.115 (21), p.215001-215001, Article 215001 |
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| container_title | Physical review letters |
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| creator | Jardin, S C Ferraro, N Krebs, I |
| description | We demonstrate that in a 3D resistive magnetohydrodynamic simulation, for some parameters it is possible to form a stationary state in a tokamak where a saturated interchange mode in the center of the discharge drives a near helical flow pattern that acts to nonlinearly sustain the configuration by adjusting the central loop voltage through a dynamo action. This could explain the physical mechanism for maintaining stationary nonsawtoothing "hybrid" discharges, often referred to as "flux pumping." |
| doi_str_mv | 10.1103/PhysRevLett.115.215001 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2015-11, Vol.115 (21), p.215001-215001, Article 215001 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1254899 |
| source | American Physical Society Journals |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Magnetohydrodynamics Electric potential Fluid dynamics Flux Helical flow Simulation Stability, Ideal Hydromagnetic Three dimensional Tokamaks Voltage |
| title | Self-Organized Stationary States of Tokamaks |
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