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Title: Nonlinear Generation of Zonal Fields by the Beta-Induced Alfvén Eigenmode in Tokamak

Abstract

The zonal fields effect on the beta-induced Alfvén eigenmode (BAE) destabilized by the energetic particles in toroidal plasmas is studied through the gyrokinetic particle simulations. It is found that the localized zonal fields with a negative value around the mode rational surface are generated by the nonlinear BAE. In the weakly driven case, the zonal fields with a strong geodesic acoustic mode (GAM) component have weak effects on the nonlinear BAE evolution. In the strongly driven case, the zonal fields are dominated by a more significant zero frequency component and have stronger effects on the nonlinear BAE evolution.

Authors:
 [1];  [2]
  1. Peking Univ., Beijing (China). Fusion Simulation Center
  2. Peking Univ., Beijing (China). Fusion Simulation Center; Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); SciDAC GSEP Center; ITER
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1565194
Resource Type:
Accepted Manuscript
Journal Name:
Plasma Science and Technology
Additional Journal Information:
Journal Volume: 15; Journal Issue: 10; Journal ID: ISSN 1009-0630
Publisher:
IOPScience
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Physics; plasma Alfven waves; plasma magnetohydrodynamics; plasma simulation

Citation Formats

Zhang, Huasen, and Lin, Zhihong. Nonlinear Generation of Zonal Fields by the Beta-Induced Alfvén Eigenmode in Tokamak. United States: N. p., 2013. Web. doi:10.1088/1009-0630/15/10/02.
Zhang, Huasen, & Lin, Zhihong. Nonlinear Generation of Zonal Fields by the Beta-Induced Alfvén Eigenmode in Tokamak. United States. doi:10.1088/1009-0630/15/10/02.
Zhang, Huasen, and Lin, Zhihong. Tue . "Nonlinear Generation of Zonal Fields by the Beta-Induced Alfvén Eigenmode in Tokamak". United States. doi:10.1088/1009-0630/15/10/02. https://www.osti.gov/servlets/purl/1565194.
@article{osti_1565194,
title = {Nonlinear Generation of Zonal Fields by the Beta-Induced Alfvén Eigenmode in Tokamak},
author = {Zhang, Huasen and Lin, Zhihong},
abstractNote = {The zonal fields effect on the beta-induced Alfvén eigenmode (BAE) destabilized by the energetic particles in toroidal plasmas is studied through the gyrokinetic particle simulations. It is found that the localized zonal fields with a negative value around the mode rational surface are generated by the nonlinear BAE. In the weakly driven case, the zonal fields with a strong geodesic acoustic mode (GAM) component have weak effects on the nonlinear BAE evolution. In the strongly driven case, the zonal fields are dominated by a more significant zero frequency component and have stronger effects on the nonlinear BAE evolution.},
doi = {10.1088/1009-0630/15/10/02},
journal = {Plasma Science and Technology},
number = 10,
volume = 15,
place = {United States},
year = {2013},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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Cited by: 4 works
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Figures / Tables:

Fig. 1 Fig. 1: $q$ profile (a) and $R$0=$L$$n$ profile (b) in radial direction

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    Works referencing / citing this record:

    Introduction to the interaction between energetic particles and Alfven eigenmodes in toroidal plasmas
    journal, December 2018


    Introduction to the interaction between energetic particles and Alfven eigenmodes in toroidal plasmas
    journal, December 2018


    Nonlinear excitation of a geodesic acoustic mode by toroidal Alfvén eigenmodes and the impact on plasma performance
    journal, May 2019


      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.