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arXiv 2004.13179physics.plasm-ph
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环形等离子体中剪切Alfvén谱和连续谱的极化

On the polarization of shear Alfvén and acoustic continuous spectra in toroidal plasmas

M. V. Falessi, N. Carlevaro, V. Fusco, E. Giovannozzi, P. Lauber, G. Vlad, F. Zonca

摘要:

本文采用了ESCCON程序来描述环形聚变等离子体中剪切Alfvén谱和连续谱的特征。ESTCON代码采用[Phys. of Plasmas \textbf{26}(8),082502(2019)]中讨论的局部Floquet分析,用于计算一般环形几何结构中连续光谱的全局结构。作为特殊的应用,参考平衡的偏滤器托卡马克测试和ASDEX升级等离子体被认为是。特别是,我们说明了模式极化的重要性,认识到在理想的MHD极限的连续光谱的各个分支的物理相关性。我们还分析了等离子体压缩效应和慢声近似的有效性。

英文摘要:

In this work, the FALCON code is adopted for illustrating the features of shear Alfvén and continuous spectra in toroidal fusion plasmas. The FALCON codes employs the local Floquet analysis discussed in [Phys. of Plasmas \textbf{26} (8), 082502 (2019)] for computing global structures of continuous spectra in general toroidal geometry. As particular applications, reference equilibria for the Divertor Tokamak Test and ASDEX Upgrade plasmas are considered. In particular, we illustrate the importance of mode polarization for recognizing the physical relevance of the various branches of the continuous spectra in the ideal MHD limit. We also analyze the effect of plasma compression and the validity of the slow sound approximation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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