Application of 3D MHD equilibrium calculation to RMP experiments in the J-TEXT tokamak

Zhaosu WANG (王昭苏); Yunfeng LIANG (梁云峰); Zhonghe JIANG (江中和); Jie HUANG (黄杰); Yasuhiro SUZUKI; Alexander KNIEPS; Song ZHOU (周松); Jinyu XIONG (熊金玉); Jiankun HUA (华建坤); Zhipeng CHEN (陈志鹏); Zhongyong CHEN (陈忠勇); Nengchao WANG (王能超); Zhoujun YANG (杨州军); Yonghua DING (丁永华); Yuan PAN (潘垣); the J-TEXT Team

doi:10.1088/2058-6272/ac0492

Plasma Science and Technology > 2021 > 23(8): 85104-085104. > DOI: 10.1088/2058-6272/ac0492

Zhaosu WANG (王昭苏), Yunfeng LIANG (梁云峰), Zhonghe JIANG (江中和), Jie HUANG (黄杰), Yasuhiro SUZUKI, Alexander KNIEPS, Song ZHOU (周松), Jinyu XIONG (熊金玉), Jiankun HUA (华建坤), Zhipeng CHEN (陈志鹏), Zhongyong CHEN (陈忠勇), Nengchao WANG (王能超), Zhoujun YANG (杨州军), Yonghua DING (丁永华), Yuan PAN (潘垣), the J-TEXT Team. Application of 3D MHD equilibrium calculation to RMP experiments in the J-TEXT tokamak[J]. Plasma Science and Technology, 2021, 23(8): 85104-085104. DOI: 10.1088/2058-6272/ac0492

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Application of 3D MHD equilibrium calculation to RMP experiments in the J-TEXT tokamak

¹ International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
² Forschungszentrum Jülich GmbH, Institute für Energie- und Klimaforschung—Plasmaphysik, 52425 Jülich, Germany
³ Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
⁴ National Institutes of Fusion Sciences, National Institutes of Natural Sciences, Oroshi-cho, 322-6, Toki 509-5292, Japan
⁵ SOKENDAI, The Graduate University for Advanced Studies, Oroshi-cho, 322-6, Toki 509-5292, Japan
⁶ Chengdu University, Chengdu 610106, People's Republic of China

Funds: This work was supported by the National Key R&D Program of China (No. 2018YFE0309100), and by National Natural Science Foundation of China (No. 51821005).

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Received Date: March 29, 2021
Revised Date: May 21, 2021
Accepted Date: May 23, 2021

Graphical Abstract

Abstract

Abstract

The application of resonant magnetic perturbation (RMP) coils could break the initial axisymmetry and change the magnetic topology in tokamak systems. To understand the plasma equilibrium response to the RMP fields, three-dimensional (3D) non-linear magnetohydrodynamics equilibrium calculations have been carried out using the HINT code for an RMP field-penetration experiment on J-TEXT. The HINT code does not assume perfectly nested flux surfaces, and is able to consider directly the change of magnetic topology due to the RMP field penetrations. Correlations between 3D equilibrium calculations and experimental observations are presented. The magnetic topologies calculated by HINT were compared with the field topologies obtained from a vacuum approximation method. It turns out that the effects of redistribution of plasma pressure and current due to the formation of magnetic islands at various resonant rational surfaces should be considered self-consistently for understanding the change of magnetic structure. Such changes include changes in the shape and size of magnetic islands, and the distribution of stochastic fields around the magnetic islands and at the plasma boundary, which plays an important role for plasma-wall interactions.
- 3D equilibrium,
- RMP,
- magnetic topology

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References (36)

References

[1]	Lao L L et al 1985 Nucl. Fusion 25 1611
[2]	Hender T C et al 1992 Nucl. Fusion 32 2091
[3]	Fitzpatrick R 1993 Nucl. Fusion 33 1049
[4]	Yu Q et al 2000 Nucl. Fusion 40 2031
[5]	Hu Q M et al 2012 Nucl. Fusion 52 083011
[6]	Hu Q M et al 2013 Phys. Plasmas 20 092502
[7]	Evans T E et al 2004 Phys. Rev. Lett. 92 235003
[8]	Evans T E et al 2006 Nat. Phys. 2 419
[9]	Liang Y et al 2007 Phys. Rev. Lett. 98 265004
[10]	Canik J M et al 2010 Nucl. Fusion 50 034012
[11]	Suttrop W et al 2011 Phys. Rev. Lett. 106 225004
[12]	Jeon Y M et al 2012 Phys. Rev. Lett. 109 035004
[13]	Yu Q et al 2004 Phys. Plasmas 11 140
[14]	Finken K H et al 2005 Phys. Rev. Lett. 94 015003
[15]	Wolfe S M et al 2005 Phys. Plasmas 12 056110
[16]	Koslowski H R et al 2006 Nucl. Fusion 46 L1
[17]	Yu Q and Günter S 2011 Nucl. Fusion 51 073030
[18]	Wesson J A et al 1989 Nucl. Fusion 29 641
[19]	Fitzpatrick R and Waelbroeck F L 2008 Phys. Plasmas 15 012502
[20]	Elgriw S et al 2011 Nucl. Fusion 51 113008
[21]	Hirshman S P and Whitson J C 1983 Phys. Fluids 26 3553
[22]	Drevlak M et al 2005 Nucl. Fusion 45 731
[23]	Hirshman S P, Sanchez R and Cook C R 2011 Phys. Plasmas 18 062504
[24]	Suzuki Y et al 2006 Nucl. Fusion 46 L19
[25]	Suzuki Y 2017 Plasma Phys. Control. Fusion 59 054008
[26]	Rao B et al 2013 Plasma Phys. Control. Fusion 55 122001
[27]	Rao B et al 2013 Phys. Lett. A 377 315
[28]	Hu Q M and Yu Q 2016 Nucl. Fusion 56 034001
[29]	Yan W et al 2018 Plasma Phys. Control. Fusion 60 035007
[30]	Li D et al 2020 Nucl. Fusion 60 056022
[31]	Liang Y et al 2019 Nucl. Fusion 59 112016
[32]	Rao B et al 2014 Fusion Eng. Des. 89 378
[33]	Huang Z et al 2020 Nucl. Fusion 60 064003
[34]	Chen J K et al 2014 Rev. Sci. Instrum. 85 11D303
[35]	Yang Z J et al 2016 Rev. Sci. Instrum. 87 11E112
[36]	Cheng Z F et al 2013 Rev. Sci. Instrum. 84 073508

[1]	Wei XIE, Yunfeng LIANG, Zhonghe JIANG, Yasuhiro SUZUKI, Li LI, Jiankun HUA, Jie HUANG, Alexander KNIEPS, Song ZHOU, Feiyue MAO, Xin XU, Keze LI, Yutong YANG, Ziyang JIN, Cunkai LI, the J-TEXT Team. Application of three-dimensional MHD equilibrium calculation coupled with plasma response to island divertor experiments on J-TEXT[J]. Plasma Science and Technology, 2024, 26(11): 115104. DOI: 10.1088/2058-6272/ad70e1
[2]	Wenyin Wei, Yunfeng Liang. Invariant manifold growth formula in cylindrical coordinates and its application for magnetically confined fusion[J]. Plasma Science and Technology, 2023, 25(9): 095105. DOI: 10.1088/2058-6272/accbf5
[3]	Jie HUANG (黄杰), Yasuhiro SUZUKI (铃木康浩), Yunfeng LIANG (梁云峰), Manni JIA (贾曼妮), Youwen SUN (孙有文), Nan CHU (楚南), Jichan XU (许吉禅), Muquan WU (吴木泉), EAST team. Magnetic field topology modeling under resonant magnetic perturbations on EAST[J]. Plasma Science and Technology, 2019, 21(6): 65105-065105. DOI: 10.1088/2058-6272/ab0d35
[4]	Yonghua DING (丁永华), Zhongyong CHEN (陈忠勇), Zhipeng CHEN (陈志鹏), Zhoujun YANG (杨州军), Nengchao WANG (王能超), Qiming HU (胡启明), Bo RAO (饶波), Jie CHEN (陈杰), Zhifeng CHENG (程芝峰), Li GAO (高丽), Zhonghe JIANG (江中和), Lu WANG (王璐), Zhijiang WANG (王之江), Xiaoqing ZHANG (张晓卿), Wei ZHENG (郑玮), Ming ZHANG (张明), Ge ZHUANG (庄革), Qingquan YU (虞清泉), Yunfeng LIANG (梁云峰), Kexun YU (于克训), Xiwei HU (胡希伟), Yuan PAN (潘垣), Kenneth William GENTLE, the J-TEXT Team. Overview of the J-TEXT progress on RMP and disruption physics[J]. Plasma Science and Technology, 2018, 20(12): 125101. DOI: 10.1088/2058-6272/aadcfd
[5]	M RACK, D HÖSCHEN, D REITER, B UNTERBERG, J W COENEN, S BREZINSEK, O NEUBAUER, S BOZHENKOV, G CZYMEK, Y LIANG, M HUBENY, Ch LINSMEIER, the Wendelstein -X Team. Probe manipulators for Wendelstein 7-X and their interaction with the magnetic topology[J]. Plasma Science and Technology, 2018, 20(5): 54002-054002. DOI: 10.1088/2058-6272/aaac78
[6]	Hailong GAO (高海龙), Tao XU (徐涛), Zhongyong CHEN (陈忠勇), Ge ZHUANG (庄革). Plasma equilibrium calculation in J-TEXT tokamak[J]. Plasma Science and Technology, 2017, 19(11): 115101. DOI: 10.1088/2058-6272/aa7f26
[7]	Zhenling ZHAO (赵朕领), Yilun ZHU (朱逸伦), Li TONG (仝丽), Jinlin XIE (谢锦林), Wandong LIU (刘万东), Changxuan YU (俞昌旋), Zhoujun YANG (杨州军), Ge ZHUANG (庄革), N C LUHMANN JR, C W DOMIER. Quasi-3D electron cyclotron emission imaging on J-TEXT[J]. Plasma Science and Technology, 2017, 19(9): 94001-094001. DOI: 10.1088/2058-6272/aa750d
[8]	CEN Yishun (岑义顺), LI Qiang (李强), DING Yonghua (丁永华), CAI Lijun (蔡立君), et al.. Stress and Thermal Analysis of the In-Vessel RMP Coils in HL-2M[J]. Plasma Science and Technology, 2013, 15(9): 939-944. DOI: 10.1088/1009-0630/15/9/20
[9]	A. C. ENGLAND, Z. Y. CHEN, D. C. SEO, J. CHUNG, Y. S. LEEV, J. W. YOO, W. C. KIM, Y. S. BAE, Y. M. JEONV, J. G. KWAK, M. KWON, the KSTAR Tea. Runaway Electron Suppression by ECRH and RMP in KSTAR[J]. Plasma Science and Technology, 2013, 15(2): 119-122. DOI: 10.1088/1009-0630/15/2/08
[10]	HAO Changduana(郝长端), ZHANG Minga(张明), DING Yonghua(丁永华), RAO Boa(饶波), CEN Yishuna(岑义顺), ZHUANG Ge(庄革). Stress and Thermal Analysis of the In-Vessel Resonant Magnetic Perturbation Coils on the J-TEXT Tokamak[J]. Plasma Science and Technology, 2012, 14(1): 83-88. DOI: 10.1088/1009-0630/14/1/18