DC Field | Value | Language |
---|---|---|
dc.contributor.author | White, A. E. | ko |
dc.contributor.author | Howard, N. T. | ko |
dc.contributor.author | Creely, A. J. | ko |
dc.contributor.author | Chilenski, M. A. | ko |
dc.contributor.author | Greenwald, M. | ko |
dc.contributor.author | Hubbard, A. E. | ko |
dc.contributor.author | Hughes, J. W. | ko |
dc.contributor.author | Marmar, E. | ko |
dc.contributor.author | Rice, J. E. | ko |
dc.contributor.author | Sierchio, J. M. | ko |
dc.contributor.author | Sung, Choongki | ko |
dc.contributor.author | Walk, J. R. | ko |
dc.contributor.author | Whyte, D. G. | ko |
dc.contributor.author | Mikkelsen, D. R. | ko |
dc.contributor.author | Edlund, E. M. | ko |
dc.contributor.author | Kung, C. | ko |
dc.contributor.author | Holland, C. | ko |
dc.contributor.author | Candy, J. | ko |
dc.contributor.author | Petty, C. C. | ko |
dc.contributor.author | Reinke, M. L. | ko |
dc.contributor.author | Theiler, C. | ko |
dc.date.accessioned | 2020-03-19T03:21:53Z | - |
dc.date.available | 2020-03-19T03:21:53Z | - |
dc.date.created | 2020-03-05 | - |
dc.date.created | 2020-03-05 | - |
dc.date.issued | 2015-05 | - |
dc.identifier.citation | PHYSICS OF PLASMAS, v.22, no.5 | - |
dc.identifier.issn | 1070-664X | - |
dc.identifier.uri | http://hdl.handle.net/10203/272830 | - |
dc.description.abstract | For the first time, nonlinear gyrokinetic simulations of I-mode plasmas are performed and compared with experiment. I-mode is a high confinement regime, featuring energy confinement similar to H-mode, but without enhanced particle and impurity particle confinement [D. G. Whyte et al., Nucl. Fusion 50, 105005 (2010)]. As a consequence of the separation between heat and particle transport, I-mode exhibits several favorable characteristics compared to H-mode. The nonlinear gyrokinetic code GYRO [J. Candy and R. E. Waltz, J Comput. Phys. 186, 545 (2003)] is used to explore the effects of E x B shear and profile stiffness in I-mode and compare with L-mode. The nonlinear GYRO simulations show that I-mode core ion temperature and electron temperature profiles are more stiff than L-mode core plasmas. Scans of the input E x B shear in GYRO simulations show that E x B shearing of turbulence is a stronger effect in the core of I-mode than L-mode. The nonlinear simulations match the observed reductions in long wavelength density fluctuation levels across the L-I transition but underestimate the reduction of long wavelength electron temperature fluctuation levels. The comparisons between experiment and gyrokinetic simulations for I-mode suggest that increased E x B shearing of turbulence combined with increased profile stiffness are responsible for the reductions in core turbulence observed in the experiment, and that I-mode resembles H-mode plasmas more than L-mode plasmas with regards to marginal stability and temperature profile stiffness. (C) 2015 AIP Publishing LLC. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Nonlinear gyrokinetic simulations of the I-mode high confinement regime and comparisons with experiment | - |
dc.type | Article | - |
dc.identifier.wosid | 000355794300116 | - |
dc.identifier.scopusid | 2-s2.0-84929645854 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 5 | - |
dc.citation.publicationname | PHYSICS OF PLASMAS | - |
dc.identifier.doi | 10.1063/1.4921150 | - |
dc.contributor.localauthor | Sung, Choongki | - |
dc.contributor.nonIdAuthor | White, A. E. | - |
dc.contributor.nonIdAuthor | Howard, N. T. | - |
dc.contributor.nonIdAuthor | Creely, A. J. | - |
dc.contributor.nonIdAuthor | Chilenski, M. A. | - |
dc.contributor.nonIdAuthor | Greenwald, M. | - |
dc.contributor.nonIdAuthor | Hubbard, A. E. | - |
dc.contributor.nonIdAuthor | Hughes, J. W. | - |
dc.contributor.nonIdAuthor | Marmar, E. | - |
dc.contributor.nonIdAuthor | Rice, J. E. | - |
dc.contributor.nonIdAuthor | Sierchio, J. M. | - |
dc.contributor.nonIdAuthor | Walk, J. R. | - |
dc.contributor.nonIdAuthor | Whyte, D. G. | - |
dc.contributor.nonIdAuthor | Mikkelsen, D. R. | - |
dc.contributor.nonIdAuthor | Edlund, E. M. | - |
dc.contributor.nonIdAuthor | Kung, C. | - |
dc.contributor.nonIdAuthor | Holland, C. | - |
dc.contributor.nonIdAuthor | Candy, J. | - |
dc.contributor.nonIdAuthor | Petty, C. C. | - |
dc.contributor.nonIdAuthor | Reinke, M. L. | - |
dc.contributor.nonIdAuthor | Theiler, C. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordPlus | ALCATOR C-MOD | - |
dc.subject.keywordPlus | HEAT-TRANSPORT | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | TOKAMAK | - |
dc.subject.keywordPlus | PLASMAS | - |
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