Self-Organized Stationary States of Tokamaks
Abstract
We demonstrate that in a 3D resistive magnetohydrodynamic (MHD) 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 non-linearly sustain the configuration by adjusting the central loop voltage through a dynamo action. This could explain the physical mechanism for maintaining stationary non-sawtoothing “hybrid” discharges, often referred to as “flux-pumping”.
- Authors:
-
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- General Atomics, San Diego, CA (United States)
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Max Planck Inst. of Plasma Physics, Garching (Germany)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- Max-Plank Princeton Center for Plasma Physics; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR). Scientific Discovery through Advanced Computing (SciDAC)
- OSTI Identifier:
- 1273407
- Alternate Identifier(s):
- OSTI ID: 1226186
- Grant/Contract Number:
- AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 115; Journal Issue: 21; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Jardin, S. C., Ferraro, N., and Krebs, I. Self-Organized Stationary States of Tokamaks. United States: N. p., 2015.
Web. doi:10.1103/PhysRevLett.115.215001.
Jardin, S. C., Ferraro, N., & Krebs, I. Self-Organized Stationary States of Tokamaks. United States. https://doi.org/10.1103/PhysRevLett.115.215001
Jardin, S. C., Ferraro, N., and Krebs, I. Tue .
"Self-Organized Stationary States of Tokamaks". United States. https://doi.org/10.1103/PhysRevLett.115.215001. https://www.osti.gov/servlets/purl/1273407.
@article{osti_1273407,
title = {Self-Organized Stationary States of Tokamaks},
author = {Jardin, S. C. and Ferraro, N. and Krebs, I.},
abstractNote = {We demonstrate that in a 3D resistive magnetohydrodynamic (MHD) 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 non-linearly sustain the configuration by adjusting the central loop voltage through a dynamo action. This could explain the physical mechanism for maintaining stationary non-sawtoothing “hybrid” discharges, often referred to as “flux-pumping”.},
doi = {10.1103/PhysRevLett.115.215001},
journal = {Physical Review Letters},
number = 21,
volume = 115,
place = {United States},
year = {Tue Nov 17 00:00:00 EST 2015},
month = {Tue Nov 17 00:00:00 EST 2015}
}
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