3D equilibrium reconstruction with islands

被引：9

作者：

Cianciosa, M. ^{[1
]}

Hirshman, S. P. ^{[1
]}

Seal, S. K. ^{[1
]}

Shafer, M. W. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2018年 / 60卷 / 04期

关键词：

islands; equilibrium; reconstruction; PELLET INJECTION; PLASMAS; TOKAMAK; OSCILLATIONS; PARADIGM; PROFILE;

D O I：

10.1088/1361-6587/aaaf90

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This paper presents the development of a 3D equilibrium reconstruction tool and the results of the first-ever reconstruction of an island equilibrium. The SIESTA non-nested equilibrium solver has been coupled to the V3FIT 3D equilibrium reconstruction code. Computed from a coupled VMEC and SIESTA model, synthetic signals are matched to measured signals by finding an optimal set of equilibrium parameters. By using the normalized pressure in place of normalized flux, non-equilibrium quantities needed by diagnostic signals can be efficiently mapped to the equilibrium. The effectiveness of this tool is demonstrated by reconstructing an island equilibrium of a DIII-D inner wall limited L-mode case with an n = 1 error field applied. Flat spots in Thomson and ECE temperature diagnostics show the reconstructed islands have the correct size and phase.

引用

收藏

页数：11

相关论文

共 40 条

[1] A NEW METHOD OF INTERPOLATION AND SMOOTH CURVE FITTING BASED ON LOCAL PROCEDURES [J].

AKIMA, H .

JOURNAL OF THE ACM, 1970, 17 (04) :589-&

[2] Reconstruction of the equilibrium of the plasma in a Tokamak and identification of the current density profile in real time [J].

Blum, J. ;

Boulbe, C. ;

Faugeras, B. .

JOURNAL OF COMPUTATIONAL PHYSICS, 2012, 231 (03) :960-980

[3] Three-dimensional distortions of the tokamak plasma boundary: boundary displacements in the presence of resonant magnetic perturbations [J].

Chapman, I. T. ;

Becoulet, M. ;

Bird, T. ;

Canik, J. ;

Cianciosa, M. ;

Cooper, W. A. ;

Evans, T. ;

Ferraro, N. ;

Fuchs, C. ;

Gryaznevich, M. ;

Gribov, Y. ;

Ham, C. ;

Hanson, J. ;

Huijsmans, G. ;

Kirk, A. ;

Lazerson, S. ;

Liang, Y. ;

Lupelli, I. ;

Moyer, R. A. ;

Nuehrenberg, C. ;

Orain, F. ;

Orlov, D. ;

Suttrop, W. ;

Yadykin, D. .

NUCLEAR FUSION, 2014, 54 (08)

[4] Saturated ideal modes in advanced tokamak regimes in MAST [J].

Chapman, I. T. ;

Hua, M. -D. ;

Pinches, S. D. ;

Akers, R. J. ;

Field, A. R. ;

Graves, J. P. ;

Hastie, R. J. ;

Michael, C. A. .

NUCLEAR FUSION, 2010, 50 (04)

[5] Helical core reconstruction of a DIII-D hybrid scenario tokamak discharge [J].

Cianciosa, M. ;

Wingen, A. ;

Hirshman, S. P. ;

Seal, S. K. ;

Unterberg, E. A. ;

Wilcox, R. S. ;

Piovesan, P. ;

Lao, L. ;

Turco, F. .

NUCLEAR FUSION, 2017, 57 (07)

[6] Single helicity: a new paradigm for the reversed field pinch [J].

Escande, DF ;

Cappello, S ;

D'Angelo, F ;

Martin, P ;

Ortolani, S ;

Paccagnella, R .

PLASMA PHYSICS AND CONTROLLED FUSION, 2000, 42 (12 SUPPL. B) :B243-B253

[7] Non-axisymmetric equilibrium reconstruction for stellarators, reversed field pinches and tokamaks [J].

Hanson, J. D. ;

Anderson, D. T. ;

Cianciosa, M. ;

Franz, P. ;

Harris, J. H. ;

Hartwell, G. H. ;

Hirshman, S. P. ;

Knowlton, S. F. ;

Lao, L. L. ;

Lazarus, E. A. ;

Marrelli, L. ;

Maurer, D. A. ;

Schmitt, J. C. ;

Sontag, A. C. ;

Stevenson, B. A. ;

Terranova, D. .

NUCLEAR FUSION, 2013, 53 (08)

[8] V3FIT: a code for three-dimensional equilibrium reconstruction [J].

Hanson, James D. ;

Hirshman, Steven P. ;

Knowlton, Stephen F. ;

Lao, Lang L. ;

Lazarus, Edward A. ;

Shields, John M. .

NUCLEAR FUSION, 2009, 49 (07)

[9]

Hayashi T, 2006, NUCL FUSION, V46, pL19

[10] Investigation of island formation due to RMPs in DIII-D plasmas with the SIESTA resistive MHD equilibrium code [J].

Hirshman, S. P. ;

Shafer, M. W. ;

Seal, S. K. ;

Canik, J. M. .

JOURNAL OF PLASMA PHYSICS, 2016, 82

← 1 2 3 4 →