Resistive Reduced MHD Modeling of Multi-Edge-Localized-Mode Cycles in Tokamak X-Point Plasmas

被引：32

作者：

Orain, F. ^{[1
]}

Becoulet, M. ^{[1
]}

Huijsmans, G. T. A. ^{[2
]}

Dif-Pradalier, G. ^{[1
]}

Hoelzl, M. ^{[3
]}

Morales, J. ^{[1
]}

Garbet, X. ^{[1
]}

Nardon, E. ^{[1
]}

Pamela, S. ^{[4
]}

Passeron, C. ^{[1
]}

Latu, G. ^{[1
]}

Fil, A. ^{[1
]}

Cahyna, P. ^{[5
]}

机构：

[1] CEA IRFM, F-13108 St Paul Les Durance, France

[2] ITER Org, F-13067 St Paul Les Durance, France

[3] Max Planck Inst Plasma Phys, D-85748 Garching, Germany

[4] Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England

[5] ASCR, Inst Plasma Phys, Prague 18200 8, Czech Republic

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

TRANSPORT; STABILIZATION; ELMS; JET;

D O I：

10.1103/PhysRevLett.114.035001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The full dynamics of a multi-edge-localized-mode (ELM) cycle is modeled for the first time in realistic tokamak X-point geometry with the nonlinear reduced MHD code JOREK. The diamagnetic rotation is found to be instrumental to stabilize the plasma after an ELM crash and to model the cyclic reconstruction and collapse of the plasma pressure profile. ELM relaxations are cyclically initiated each time the pedestal gradient crosses a triggering threshold. Diamagnetic drifts are also found to yield a near-symmetric ELM power deposition on the inner and outer divertor target plates, consistent with experimental measurements.

引用

页数：5

共 4 条

[1] Resistive X-point modes in tokamak boundary plasmas
Myra, JR
D'Ippolito, DA
Xu, XQ
Cohen, RH
PHYSICS OF PLASMAS, 2000, 7 (06) : 2290 - 2293
[2] Hermes-3 simulation of the low-n X-point mode driven by impurity in tokamak edge plasmas
Chang, Huayi
Dudson, Benjamin
Sun, Jizhong
Kryjak, Mike
Ye, Yang
Li, Mao
Wang, Weikang
NUCLEAR MATERIALS AND ENERGY, 2025, 43
[3] Effect of the X-point on the Stability of the Edge-current-driven MHD Mode in Tokamaks
Kwon, Ohjin
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2010, 57 (05) : 1193 - 1197
[4] Non-linear MHD modeling of edge localized mode cycles and mitigation by resonant magnetic perturbations
Orain, Francois
Becoulet, M.
Morales, J.
Huijsmans, G. T. A.
Dif-Pradalier, G.
Hoelzl, M.
Garbet, X.
Pamela, S.
Nardon, E.
Passeron, C.
Latu, G.
Fil, A.
Cahyna, P.
PLASMA PHYSICS AND CONTROLLED FUSION, 2015, 57 (01)

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