Turbulence spreading and its effects on the edge flows and turbulence during sawtooth cycles in the J-TEXT tokamak plasmas

被引：3

作者：

Zhang, Jinyu ^{[1
]}

Zhao, Kaijun ^{[1
]}

Yang, Zhoujun ^{[2
]}

Chen, Zhipeng ^{[2
]}

Guo, Zhibin ^{[3
]}

Dong, Jiaqi ^{[4
]}

Itoh, K. ^{[5
,6
,7
]}

Chen, Zhongyong ^{[2
]}

Shi, Yuejiang ^{[8
]}

Ding, Yonghua ^{[2
]}

Li, Jiquan ^{[4
]}

Xie, Yaoyu ^{[1
]}

Zhang, Huaiqiang ^{[1
]}

Chen, Yuqian ^{[1
]}

Li, Ran ^{[2
]}

Cao, Xiaogang ^{[1
]}

Du, Junjie ^{[1
]}

Jiang, Jiaming ^{[1
]}

Zhang, Guoshu ^{[1
]}

Cheng, Jun ^{[9
,10
]}

Xu, Jianqiang ^{[4
]}

Xiang, Lin ^{[1
]}

Wang, Nengchao ^{[2
]}

Wang, Lu ^{[2
]}

Liang, Yunfeng ^{[2
]}

机构：

[1] East China Univ Technol, Sch Nucl Sci & Engn, Nanchang 330013, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China

[3] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[4] Southwestern Inst Phys, Chengdu 610041, Peoples R China

[5] Chubu Univ, Inst Sci & Technol Res, Kasugai, Aichi 4878501, Japan

[6] Kyushu Univ, Res Ctr Plasma Turbulence, Kasuga 8168580, Japan

[7] Natl Inst Fus Sci, Toki 5095292, Japan

[8] ENN Sci & Technol Dev Co Ltd, Langfang 065001, Hebei, Peoples R China

[9] Hebei Key Lab Compact Fus Langfang, Langfang 065001, Hebei, Peoples R China

[10] Southwest Jiaotong Univ, Inst Fus Sci, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China

来源：

PHYSICS OF PLASMAS | 2023年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

HEAT-PULSE-PROPAGATION; H-MODE TRANSITION; OSCILLATIONS; TRANSPORT; DISCHARGES; PARTICLE;

D O I：

10.1063/5.0153055

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：

Turbulence spreading and its effects on the edge flows and turbulence during sawtooth cycles in the J-TEXT tokamak plasmas are presented. These experiments were performed by Langmuir probe array and electron cyclotron emission. This study aims to understand the rapid transport phenomenon and the role of turbulence in driving flows. Beyond the mixing radius, the turbulence pulse moves faster than the sawtooth heat pulses. The results confirm the existence of turbulence spreading during sawtooth cycles. As the turbulence and heat pulses propagate to the edge, the edge turbulence, radial electric fields, pressures, and geodesic acoustic modes are all enhanced. Hysteresis relationships between the intensities of the turbulence and the radial electric fields are observed. The radial electric field lags behind the turbulence, and its intensity increases/decreases almost linearly with the increase/decrease in the turbulence intensity. The observation suggests that the edge flows are driven dominantly by turbulence during sawtooth cycles. The weakening/enhancement of the edge flows accompanies the increase/decrease in the ion collision rates during sawtooth cycles.

引用

页数：11

共 28 条

[21] Isotope effects on turbulence and zonal flows in HL-2A edge plasmas
He, Y.
Cheng, J.
Xu, Y.
Fang, Q.
Xu, J. Q.
Wang, W. C.
Zou, Q.
Yan, L. W.
Huang, Z. H.
Wu, N.
Shi, Z. B.
Liu, Y.
Zhong, W. L.
Xu, M.
NUCLEAR FUSION, 2022, 62 (09)
[22] Effects of resonant magnetic perturbations on turbulence and flows in the edge of HL-2A plasmas
Li, Jingchun
Lin, Z.
Cheng, J.
Wu, Z. X.
Xu, Jianqiang
He, Y.
Huang, Z. H.
Liang, A. S.
Sun, T. F.
Dong, J. Q.
Shi, Z. B.
Zhong, Wulyv
Xu, M.
PHYSICS OF PLASMAS, 2024, 31 (04)
[23] Evolutions of zonal flows and turbulence in a tokamak edge plasma during electron cyclotron resonance heating
Kong, D. F.
Liu, A. D.
Lan, T.
Cui, Z. Y.
Yu, D. L.
Yan, L. W.
Zhao, H. L.
Sheng, H. G.
Chen, R.
Xie, J. L.
Li, H.
Liu, W. D.
Yu, C. X.
Ding, W. X.
Sun, X.
Hong, W. Y.
Cheng, J.
Zhao, K. J.
Dong, J. Q.
Duan, X. R.
NUCLEAR FUSION, 2013, 53 (12)
[24] Observation of inverse sawtooth activity on central soft X-ray emission during impurity injection in the J-TEXT tokamak
Feng, X. D.
Zhuang, G.
Yang, Z. J.
Xiao, J. S.
Zhang, X. Q.
Chen, J.
Hu, X. W.
PHYSICS LETTERS A, 2013, 377 (41) : 2959 - 2965
[25] Isotope Effects on Trapped-Electron-Mode Driven Turbulence and Zonal Flows in Helical and Tokamak Plasmas
Nakata, Motoki
Nunami, Masanori
Sugama, Hideo
Watanabe, Tomo-Hiko
PHYSICAL REVIEW LETTERS, 2017, 118 (16)
[26] Effects of electron cyclotron resonance heating modulation on edge turbulence driving and spreading in HL-2A tokamak
Hu, Yingxin
Zhao, Kaijun
Li, Jiquan
Yan, Longwen
Xu, Jianqiang
Huang, Zhihui
Yu, Deliang
Xie, Yaoyu
Ding, Xiaoguan
Wen, Siyu
ACTA PHYSICA SINICA, 2025, 74 (05)
[27] Co-current toroidal rotation-driven and turbulent stresses with resonant magnetic perturbations in the edge plasmas of the J-TEXT tokamak
Zhao, K. J.
Shi, Yuejiang
Liu, H.
Diamond, P. H.
Li, F. M.
Cheng, J.
Chen, Z. P.
Nie, L.
Ding, Y. H.
Wu, Y. F.
Chen, Z. Y.
Rao, B.
Cheng, Z. F.
Gao, L.
Zhang, X. Q.
Yang, Z. J.
Wang, N. C.
Wang, L.
Jin, W.
Xu, J. Q.
Yan, L. W.
Dong, J. Q.
Zhuang, G.
NUCLEAR FUSION, 2016, 56 (07)
[28] Effects of zonal flows on transport crossphase in dissipative trapped-electron mode turbulence in edge plasmas
Leconte, M.
Singh, R.
PLASMA PHYSICS AND CONTROLLED FUSION, 2019, 61 (09)

← 1 2 3 →