Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak
Influence of neoclassical toroidal viscosity (NTV) torque on intrinsic toroidal rotation caused by internal kink mode (IKM) in the J-TEXT tokamak is studied. It is observed that the toroidal rotation in the counter-current direction decreases after the on-axis electron cyclotron resonance heating (E...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/adf4f5 |
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| author | Hanhui Li Youwen Sun Lu Wang Xingting Yan Hui Sheng Zhoujun Yang Li Gao Yonghua Ding Zhongyong Chen Zhipeng Chen Donghui Xia Wei Yan Da Li J-TEXT Team |
| author_facet | Hanhui Li Youwen Sun Lu Wang Xingting Yan Hui Sheng Zhoujun Yang Li Gao Yonghua Ding Zhongyong Chen Zhipeng Chen Donghui Xia Wei Yan Da Li J-TEXT Team |
| author_sort | Hanhui Li |
| collection | DOAJ |
| description | Influence of neoclassical toroidal viscosity (NTV) torque on intrinsic toroidal rotation caused by internal kink mode (IKM) in the J-TEXT tokamak is studied. It is observed that the toroidal rotation in the counter-current direction decreases after the on-axis electron cyclotron resonance heating (ECRH) is turned on, during which the IKM is strongly enhanced. The change of plasma rotation due to ECRH decreases with increasing plasma density, which is due to a decreasing of the IKM’s amplitude. This gives direct evidence that the change in intrinsic rotation strongly depends on the amplitude of the IKM. It is shown in the modeling that the decrease in the amplitude of the IKM reduces the NTV torque, and hence the influence on the toroidal rotation becomes weaker. The modeled dependence of rotation variation on plasma density agrees well with the observations. These results indicate that the NTV torque caused by the IKM plays a key role in changing the intrinsic core toroidal rotation in ECRH plasmas in the J-TEXT tokamak. |
| format | Article |
| id | doaj-art-58978db1a5d2479f945a06ca94e8a1c0 |
| institution | DOAJ |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-58978db1a5d2479f945a06ca94e8a1c02025-08-20T02:58:21ZengIOP PublishingNuclear Fusion0029-55152025-01-0165909600710.1088/1741-4326/adf4f5Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamakHanhui Li0Youwen Sun1https://orcid.org/0000-0002-9934-1328Lu Wang2https://orcid.org/0000-0002-5881-6139Xingting Yan3https://orcid.org/0000-0002-0934-2969Hui Sheng4https://orcid.org/0000-0001-6052-5229Zhoujun Yang5https://orcid.org/0000-0002-9141-7869Li Gao6https://orcid.org/0000-0001-5758-3516Yonghua Ding7Zhongyong Chen8https://orcid.org/0000-0002-8934-0364Zhipeng Chen9https://orcid.org/0000-0002-8330-0070Donghui Xia10https://orcid.org/0000-0002-5325-7622Wei Yan11Da Li12J-TEXT Team13Guizhou University of Commerce , Computer and information engineering college, Guiyang 550014, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInternational 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, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInternational 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, ChinaInfluence of neoclassical toroidal viscosity (NTV) torque on intrinsic toroidal rotation caused by internal kink mode (IKM) in the J-TEXT tokamak is studied. It is observed that the toroidal rotation in the counter-current direction decreases after the on-axis electron cyclotron resonance heating (ECRH) is turned on, during which the IKM is strongly enhanced. The change of plasma rotation due to ECRH decreases with increasing plasma density, which is due to a decreasing of the IKM’s amplitude. This gives direct evidence that the change in intrinsic rotation strongly depends on the amplitude of the IKM. It is shown in the modeling that the decrease in the amplitude of the IKM reduces the NTV torque, and hence the influence on the toroidal rotation becomes weaker. The modeled dependence of rotation variation on plasma density agrees well with the observations. These results indicate that the NTV torque caused by the IKM plays a key role in changing the intrinsic core toroidal rotation in ECRH plasmas in the J-TEXT tokamak.https://doi.org/10.1088/1741-4326/adf4f5magnetic confinementtoroidal rotationneoclassical toroidal viscosityexperiment and simulation |
| spellingShingle | Hanhui Li Youwen Sun Lu Wang Xingting Yan Hui Sheng Zhoujun Yang Li Gao Yonghua Ding Zhongyong Chen Zhipeng Chen Donghui Xia Wei Yan Da Li J-TEXT Team Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak Nuclear Fusion magnetic confinement toroidal rotation neoclassical toroidal viscosity experiment and simulation |
| title | Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak |
| title_full | Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak |
| title_fullStr | Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak |
| title_full_unstemmed | Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak |
| title_short | Effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on J-TEXT tokamak |
| title_sort | effects of neoclassical toroidal viscosity on toroidal rotation under electron cyclotron resonance heating on j text tokamak |
| topic | magnetic confinement toroidal rotation neoclassical toroidal viscosity experiment and simulation |
| url | https://doi.org/10.1088/1741-4326/adf4f5 |
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