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Title: MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry

Abstract

We have developed a new global eigenvalue code, Multiscale Analysis for plasma Stabilities (MAS), for studying plasma problems with wave toroidal mode number (n) and frequency (ω) in a broad range of interest in general tokamak geometry, based on a five-field Landau-fluid description of thermal plasmas. Beyond keeping the necessary plasma fluid response, we further retain the important kinetic effects including diamagnetic drift, ion finite Larmor radius, finite parallel electric field (E||), ion and electron Landau resonances in a self-consistent and non-perturbative manner without sacrificing the attractive efficiency in computation. The physical capabilities of the code are evaluated and examined in the aspects of both theory and simulation. In theory, the comprehensive Landau-fluid model implemented in MAS can be reduced to the well-known ideal MHD model, electrostatic ion-fluid model, and drift-kinetic model in various limits, which clearly delineates the physics validity regime. In simulation, MAS has been well benchmarked with theory and other gyrokinetic and kinetic-MHD hybrid codes in a manner of adopting the unified physical and numerical framework, which covers the kinetic Alfv\'en wave (KAW), ion sound wave (ISW), low-n kink, high-n ion temperature gradient mode (ITG) and kinetic ballooning mode (KBM). Moreover, MAS is successfully applied to modelmore » the Alfv\'en eigenmode (AE) activities in DIII-D discharge #159243, which faithfully captures the frequency sweeping of reversed shear Alfv\'en eigenmode (RSAE), the tunneling damping of toroidal Alfv\'en eigenmode (TAE), as well as the polarization characteristics of kinetic beta-induced Alfv\'en eigenmode (KBAE) and beta-induced Alfv\'en-acoustic eigenmode (BAAE) being consistent with former gyrokinetic theory and simulation. With respect to the key progress contributed to the community, MAS has the advantage of combining rich physics ingredients, realistic global geometry and high computation efficiency together for plasma stability analysis in linear regime.« less

Authors:
 [1]; ORCiD logo [2];  [2];  [3]; ORCiD logo [4]; ORCiD logo [5];  [6]; ORCiD logo [7];  [8];  [1];  [1]
  1. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics. Beijing National Lab. for Condensed Matter Physics (BNLCP-CAS) and Key Laboratory of Soft Matter Physics; University of Chinese Academy of Sciences, Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Physics. Beijing National Lab. for Condensed Matter Physics (BNLCP-CAS) and Key Laboratory of Soft Matter Physics; University of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Laboratory, Guangdong (China)
  3. Univ. of California, Irvine, CA (United States)
  4. Energy Singularity Co., Ltd., Shanghai (China)
  5. Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
  6. Hebei Key Laboratory of Compact Fusion, Langfang (China); ENN Science and Technoloogy Development Co., Ltd., Langfang (China)
  7. Max Planck Institute for Plasma Physics, Greifswald (Germany)
  8. Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Research Org.:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE; National MCF Energy R&D Program; National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences (CAS)
OSTI Identifier:
1974436
Grant/Contract Number:  
AC02-09CH11466; 2018YFE0304100; 2017YFE0301300; 12275351; 11905290; 11835016; Y9K5011R21
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 63; Journal Issue: 7; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Bao, Jian, Zhang, Wenlu, Li, Ding, Lin, Zhihong, Dong, Ge, Liu, Chang, Xie, Huasheng, Meng, Guo, Cheng, Junyi, Dong, Chao, and Cao, Jintao. MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry. United States: N. p., 2023. Web. doi:10.1088/1741-4326/acd1a0.
Bao, Jian, Zhang, Wenlu, Li, Ding, Lin, Zhihong, Dong, Ge, Liu, Chang, Xie, Huasheng, Meng, Guo, Cheng, Junyi, Dong, Chao, & Cao, Jintao. MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry. United States. https://doi.org/10.1088/1741-4326/acd1a0
Bao, Jian, Zhang, Wenlu, Li, Ding, Lin, Zhihong, Dong, Ge, Liu, Chang, Xie, Huasheng, Meng, Guo, Cheng, Junyi, Dong, Chao, and Cao, Jintao. Tue . "MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry". United States. https://doi.org/10.1088/1741-4326/acd1a0. https://www.osti.gov/servlets/purl/1974436.
@article{osti_1974436,
title = {MAS: A versatile Landau-fluid eigenvalue code for plasma stability analysis in general geometry},
author = {Bao, Jian and Zhang, Wenlu and Li, Ding and Lin, Zhihong and Dong, Ge and Liu, Chang and Xie, Huasheng and Meng, Guo and Cheng, Junyi and Dong, Chao and Cao, Jintao},
abstractNote = {We have developed a new global eigenvalue code, Multiscale Analysis for plasma Stabilities (MAS), for studying plasma problems with wave toroidal mode number (n) and frequency (ω) in a broad range of interest in general tokamak geometry, based on a five-field Landau-fluid description of thermal plasmas. Beyond keeping the necessary plasma fluid response, we further retain the important kinetic effects including diamagnetic drift, ion finite Larmor radius, finite parallel electric field (E||), ion and electron Landau resonances in a self-consistent and non-perturbative manner without sacrificing the attractive efficiency in computation. The physical capabilities of the code are evaluated and examined in the aspects of both theory and simulation. In theory, the comprehensive Landau-fluid model implemented in MAS can be reduced to the well-known ideal MHD model, electrostatic ion-fluid model, and drift-kinetic model in various limits, which clearly delineates the physics validity regime. In simulation, MAS has been well benchmarked with theory and other gyrokinetic and kinetic-MHD hybrid codes in a manner of adopting the unified physical and numerical framework, which covers the kinetic Alfv\'en wave (KAW), ion sound wave (ISW), low-n kink, high-n ion temperature gradient mode (ITG) and kinetic ballooning mode (KBM). Moreover, MAS is successfully applied to model the Alfv\'en eigenmode (AE) activities in DIII-D discharge #159243, which faithfully captures the frequency sweeping of reversed shear Alfv\'en eigenmode (RSAE), the tunneling damping of toroidal Alfv\'en eigenmode (TAE), as well as the polarization characteristics of kinetic beta-induced Alfv\'en eigenmode (KBAE) and beta-induced Alfv\'en-acoustic eigenmode (BAAE) being consistent with former gyrokinetic theory and simulation. With respect to the key progress contributed to the community, MAS has the advantage of combining rich physics ingredients, realistic global geometry and high computation efficiency together for plasma stability analysis in linear regime.},
doi = {10.1088/1741-4326/acd1a0},
journal = {Nuclear Fusion},
number = 7,
volume = 63,
place = {United States},
year = {Tue May 02 00:00:00 EDT 2023},
month = {Tue May 02 00:00:00 EDT 2023}
}

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