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Calculation of toroidal Alfven eigenmode mode structure in general axisymmetric toroidal geometry

文献类型：期刊论文

作者Wei, Guangyu2,5,6,7; Falessi, Matteo Valerio2,3,5; Wang, Tao2,5,6,7; Zonca, Fulvio2,5,6,7; Qiu, Zhiyong1,2,4,5
刊名PHYSICS OF PLASMAS
出版日期2024-07-01
卷号31
ISSN号1070-664X
DOI10.1063/5.0213242
通讯作者Zonca, Fulvio(fulvio.zonca@enea.it)
英文摘要A workflow is developed based on the ideal MHD model to investigate the linear physics of various Alfven eigenmodes in general axisymmetric toroidal geometry by solving the coupled shear Alfven wave (SAW) and ion sound wave (ISW) equations in ballooning space. The model equations are solved by the FALCON code in the singular layer, and the corresponding solutions are then taken as the boundary conditions for calculating parallel mode structures in the whole ballooning space. As an application of the code, the frequencies and mode structures of toroidal Alfven eigenmode (TAE) are calculated in the reference equilibria of the Divertor Tokamak Test facility with positive and negative triangularities, respectively. As typical result for reactor relevant plasma conditions, which are strongly triangular in the outer core region where magnetic shear is of order unity, we show that the triangularity effect on TAE is generally small. Furthermore, by properly handling the boundary conditions, we demonstrate finite TAE damping due to coupling with the local acoustic continuum and find that the damping rate is small for typical plasma parameters. (C) 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND) license (https://creativecommons.org/licenses/by-nc-nd/4.0/).
WOS关键词SHEAR-ALFVEN ; INSTABILITIES ; SPECTRA
资助项目National Natural Science Foundation of China10.13039/501100001809[12275236] ; National Natural Science Foundation of China10.13039/501100001809[12261131622] ; National Science Foundation of China[CN23GR02] ; Italian Ministry for Foreign Affairs and International Cooperation Project[101052200] ; EUROfusion Consortium - European Union via the Euratom Research and Training Programme
WOS研究方向Physics
语种英语
WOS记录号WOS:001267510100006
出版者AIP Publishing
资助机构National Natural Science Foundation of China10.13039/501100001809 ; National Science Foundation of China ; Italian Ministry for Foreign Affairs and International Cooperation Project ; EUROfusion Consortium - European Union via the Euratom Research and Training Programme
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/136920]  
专题中国科学院合肥物质科学研究院
通讯作者Zonca, Fulvio
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
2.CR ENEA Frascati, Via E Fermi 45, I-00044 Frascati, Italy
3.Inst Nazl Fis Nucl INFN, Sez Roma, Piazzale Aldo Moro 2, I-00185 Rome, Italy
4.Chinese Acad Sci, Key Lab Frontier Phys Controlled Nucl Fus, Hefei 230031, Peoples R China
5.Ctr Nonlinear Plasma Sci, Via E Fermi 45, I-00044 Frascati, Italy
6.Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
7.Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Peoples R China
推荐引用方式
GB/T 7714		 Wei, Guangyu,Falessi, Matteo Valerio,Wang, Tao,et al. Calculation of toroidal Alfven eigenmode mode structure in general axisymmetric toroidal geometry[J]. PHYSICS OF PLASMAS,2024,31.
APA Wei, Guangyu,Falessi, Matteo Valerio,Wang, Tao,Zonca, Fulvio,&Qiu, Zhiyong.(2024).Calculation of toroidal Alfven eigenmode mode structure in general axisymmetric toroidal geometry.PHYSICS OF PLASMAS,31.
MLA Wei, Guangyu,et al."Calculation of toroidal Alfven eigenmode mode structure in general axisymmetric toroidal geometry".PHYSICS OF PLASMAS 31(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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