Numerical analysis for the free-boundary current reversal equilibrium in the AC plasma current operation in Tokamak

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-14 DOI:10.1088/2058-6272/ad0c98

Yemin Hu, Liuqing Wang, Shuhang Bai, Zhi Yu, Tianyang Xia

引用次数: 0

Abstract

Abstract Abstract In the last decades, tokamak discharges with zero total toroidal current have been reported in tokamak experiments, which is one of the most key problems in the AC operations. An efficient free-boundary equilibrium code is developed to investigate such advanced tokamak discharges with current reversal equilibrium configuration. The calculation results show that the reversal current equilibrium can maintain finite pressure, extreme high \beta_{p}, and also have considerable effects on the position of the X-point, magnetic separatrix shape, and hence the position of the strike point on the divertor plates, which is extremely useful for the magnetic design, the MHD stability analysis, and the experimental data analysis etc. for the AC plasma current operation on tokamaks.

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托卡马克交流等离子体电流运行中自由边界电流反转平衡的数值分析

摘要近几十年来，托卡马克实验中出现了总环向电流为零的托卡马克放电现象，这是交流操作中最关键的问题之一。建立了一种有效的自由边界平衡代码，用于研究具有电流反转平衡结构的先进托卡马克放电。计算结果表明，反向电流平衡可以保持有限的压力，极高的\beta_{p}，并对导流板上x点的位置、磁分离矩阵的形状以及击点的位置有相当大的影响，这对托卡马克交流等离子体电流操作的磁性设计、MHD稳定性分析和实验数据分析等都有很大的帮助。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.