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:
-
- Peking Univ., Beijing (China). Fusion Simulation Center
- 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. https://doi.org/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. https://doi.org/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 = {Tue Oct 01 00:00:00 EDT 2013},
month = {Tue Oct 01 00:00:00 EDT 2013}
}
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Cited by: 9 works
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Figures / Tables:
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
- Todo, Y.
- Reviews of Modern Plasma Physics, Vol. 3, Issue 1
Nonlinear excitation of a geodesic acoustic mode by toroidal Alfvén eigenmodes and the impact on plasma performance
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- Qiu, Zhiyong; Chen, Liu; Zonca, Fulvio
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.