DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Verification of gyrokinetic particle simulation of current-driven instability in fusion plasmas. IV. Drift-tearing mode

Journal Article · · Physics of Plasmas
DOI: https://doi.org/10.1063/1.5116332 · OSTI ID:1577612
 [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [5];  [5];  [1]
  1. Univ. of Science and Technology of China, Hefei (China); Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences; Univ.of Chinese Academy of Sciences, Beijing (China)
  2. Univ. of Science and Technology of China, Hefei (China); Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences; Univ.of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Lab., Dongguan, Guangdong (China)
  3. Univ. of Science and Technology of China, Hefei (China); Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences; Univ.of Chinese Academy of Sciences, Beijing (China); China Three Gorges Univ., Yichang, Hubei (China)
  4. Univ. of California, Irvine, CA (United States)
  5. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences; Univ.of Chinese Academy of Sciences, Beijing (China)

Here, the drift-tearing instability due to diamagnetic drift effects is verified using the Gyrokinetic Toroidal Code (GTC). First, the classical (2,1) resistive tearing mode is verified in a cylindrical geometry with a fluid model. The dependence of the growth rate of the resistive tearing mode on the beta value of the plasma is obtained and is found to qualitatively agree with the theoretical prediction. A drift-tearing mode is subsequently generated when the equilibrium pressure gradient is significant. In this mode, diamagnetic drift effects result in a reduced growth rate and a real frequency equal to the electron diamagnetic frequency. The scaling relation between the diamagnetic frequency and the growth rate of the drift-tearing mode has been calculated. Lastly, this relation shows good agreement with the theoretical prediction for a relatively small resistivity; however, an obvious deviation arises when the resistivity is large.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1577612
Journal Information:
Physics of Plasmas, Vol. 26, Issue 9; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (28)

Hybrid simulation of energetic particle effects on tearing modes in tokamak plasmas journal July 2012
Thermal Transport Effects on Drift-Tearing Mode journal June 2007
Linear kinetic theory of high-m tearing modes journal January 1980
Nonlinear dynamics of rotating drift-tearing modes in tokamak plasmas journal September 2008
Linear and nonlinear stability of drift-tearing mode journal January 2010
Energetic particle effects on n = 1 resistive MHD instabilities in a DIII-D hybrid discharge journal February 2012
Numerical modeling of linear drift-tearing mode stability journal March 2003
Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry journal December 2009
Nonlinear evolution of tearing modes in inhomogeneous plasmas journal June 1993
Verification of gyrokinetic particle simulation of current-driven instability in fusion plasmas. II. Resistive tearing mode journal December 2014
Nonlinear growth of the tearing mode journal January 1973
ITER on the road to fusion energy journal December 2009
Gyrokinetic approach in particle simulation journal January 1983
Resistive reconnection journal January 1986
Kinetic theory of tearing instability journal January 1975
Drift-tearing modes in a tokamak plasma journal August 1978
Kinetic theory of tearing instabilities journal January 1977
Chapter 1: Overview and summary journal December 1999
Fluid theory of tearing instabilities journal January 1980
Nonlinear drift tearing modes journal January 1980
Gyrokinetic simulation model for kinetic magnetohydrodynamic processes in magnetized plasmas journal January 2012
A new algebraic growth of nonlinear tearing mode journal September 1995
Finite-Resistivity Instabilities of a Sheet Pinch journal January 1963
Tearing mode in the cylindrical tokamak journal January 1973
Verification of linear resistive tearing instability with gyrokinetic particle code VirtEx journal October 2017
The linear tearing instability in three dimensional, toroidal gyro-kinetic simulations journal February 2015
Gyrokinetic-ion drift-kinetic-electron simulation of the (m = 2, n = 1) cylindrical tearing mode journal March 2016
Nonlinear Stability of Drift-Tearing Modes journal March 1985