HL-2A装置边缘湍流与带状流相互作用的实验研究

doi:10.16568/j.0254-6086.202401012

核工业西南物理研究院 ›› 2024, Vol. 44 ›› Issue (1): 72-77.DOI: 10.16568/j.0254-6086.202401012

HL-2A装置边缘湍流与带状流相互作用的实验研究

方茜1，程钧*1，王威策2，严龙文2，黄治辉2，吴娜2，许宇鸿1，唐昌建1，石中兵2，钟武律2，许敏2

(1. 西南交通大学物理科学与技术学院，成都 610031；2. 核工业西南物理研究院，成都 610041)

收稿日期:2022-03-02 修回日期:2023-05-22 出版日期:2024-03-15 发布日期:2024-03-14
通讯作者: 程钧(1980-)，男，四川通江人，研究员，博士研究生导师，从事核聚变等离子体诊断和实验物理研究。
作者简介:方茜(1996-)，女，湖北利川人，硕士研究生，从事高温等离子体边界湍流物理研究。
基金资助:
国家自然科学基金面上项目(11875017)；四川省杰出青年科技人才项目(2020JDJQ0019)

Experimental study of the interaction between edge turbulence and zonal flows in the HL-2A tokamak

FANG Qian1, CHENG Jun1, WANG Wei-che2, YAN Long-wen2, HUANG Zhi-hui2, WU Na2, XU Yu-hong1, TANG Chang-jian1, SHI Zhong-bin 2, ZHONG Wu-Lü2, XU Min 2

(1. School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031; 2. Southwestern Institute of Physics, Chengdu 610041)

Received:2022-03-02 Revised:2023-05-22 Online:2024-03-15 Published:2024-03-14

摘要/Abstract

摘要： 利用组合静电探针阵列研究了HL-2A装置中湍流与带状流相互作用的动力学过程。实验结果表明，在粒子注入后的等离子体恢复阶段，边界区径向电场剖面逐渐变陡，湍流相干尺度和带状流幅度相应增加，而湍流强度随之降低。这些实验提供了带状流与边缘湍流相互作用的直接实验证据，暗示了能量转移是引起带状流增长的主要原因。

关键词: 托卡马克, 带状流, 湍流输运, 静电探针, 双谱分析

Abstract: The dynamic interaction between edge turbulence and zonal flows has been studied using the combined Langmuir probe arrays on HL-2A tokamak. The experimental results illustrate that both the amplitude level of zonal flows and turbulence eddies size increase, and the turbulent intensity reduces correspondently meanwhile the edge radial electric field profile gradually steepens in the plasma recovery phase after particle injection. The experimental studies present the direct experimental evidence of the interaction between edge turbulence and zonal flows, indicating that energy transfer is the main cause for the excitation of zonal flows.

Key words: , Tokamak, Zonal flows, Turbulent transport, Langmuir probe, Bicoherence analysis

中图分类号:

TL65+6

方茜, 程钧, 王威策, 严龙文, 黄治辉, 吴娜, 许宇鸿, 唐昌建, 石中兵, 钟武律, 许敏. HL-2A装置边缘湍流与带状流相互作用的实验研究[J]. 核工业西南物理研究院, 2024, 44(1): 72-77.

FANG Qian, CHENG Jun, WANG Wei-che, YAN Long-wen, HUANG Zhi-hui, WU Na, XU Yu-hong, TANG Chang-jian, SHI Zhong-bin, ZHONG Wu-Lü, XU Min. Experimental study of the interaction between edge turbulence and zonal flows in the HL-2A tokamak[J]. Nuclear Fusion and Plasma Physics, 2024, 44(1): 72-77.

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HL-2A装置边缘湍流与带状流相互作用的实验研究

Experimental study of the interaction between edge turbulence and zonal flows in the HL-2A tokamak

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