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Title: Two-fluid MHD regime of resistive drift-wave instability

Abstract

Drift instabilities contribute to the formation of edge turbulence and zonal flows and thus the anomalous transport in tokamaks. Experiments often found micro-scale turbulence strongly coupled with large-scale magnetohydrodynamic (MHD) processes, whereas a general framework has been lacking that can cover both regimes, in particular, their coupling. Here, the linear resistive drift wave instability is investigated using a full 2-fluid MHD model, as well as its numerical implementation in the NIMROD code. Both analytical and numerical analyses reveal a macro-scale global drift wave eigenmode coupled with MHD dynamics and illustrate a non-monotonic dispersion relation with respect to both perpendicular and parallel wavenumbers. NIMROD findings also reveal an edge-localized behavior in the radial mode structure as the azimuthal mode number increases, implying the dependence of the 2-fluid effects due to the inhomogeneous density profile. The edge-localization introduces a non-trivial dependence of the effective perpendicular wavenumber to the perpendicular mode number, which may explain the quantitative difference between the global dispersion relation and its local approximation from the conventional local theory.

Authors:
 [1]; ORCiD logo [2];  [1]; ORCiD logo [1]
  1. Univ. of Science and Technology of China, Hefei (China)
  2. Univ. of Science and Technology of China, Hefei (China); Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States); Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
OSTI Identifier:
1540245
Alternate Identifier(s):
OSTI ID: 1474774
Grant/Contract Number:  
FC02-08ER54975; FG02-86ER53218; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 9; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Yang, Shangchuan, Zhu, Ping, Xie, Jinlin, and Liu, Wandong. Two-fluid MHD regime of resistive drift-wave instability. United States: N. p., 2018. Web. doi:10.1063/1.5043323.
Yang, Shangchuan, Zhu, Ping, Xie, Jinlin, & Liu, Wandong. Two-fluid MHD regime of resistive drift-wave instability. United States. doi:https://doi.org/10.1063/1.5043323
Yang, Shangchuan, Zhu, Ping, Xie, Jinlin, and Liu, Wandong. Fri . "Two-fluid MHD regime of resistive drift-wave instability". United States. doi:https://doi.org/10.1063/1.5043323. https://www.osti.gov/servlets/purl/1540245.
@article{osti_1540245,
title = {Two-fluid MHD regime of resistive drift-wave instability},
author = {Yang, Shangchuan and Zhu, Ping and Xie, Jinlin and Liu, Wandong},
abstractNote = {Drift instabilities contribute to the formation of edge turbulence and zonal flows and thus the anomalous transport in tokamaks. Experiments often found micro-scale turbulence strongly coupled with large-scale magnetohydrodynamic (MHD) processes, whereas a general framework has been lacking that can cover both regimes, in particular, their coupling. Here, the linear resistive drift wave instability is investigated using a full 2-fluid MHD model, as well as its numerical implementation in the NIMROD code. Both analytical and numerical analyses reveal a macro-scale global drift wave eigenmode coupled with MHD dynamics and illustrate a non-monotonic dispersion relation with respect to both perpendicular and parallel wavenumbers. NIMROD findings also reveal an edge-localized behavior in the radial mode structure as the azimuthal mode number increases, implying the dependence of the 2-fluid effects due to the inhomogeneous density profile. The edge-localization introduces a non-trivial dependence of the effective perpendicular wavenumber to the perpendicular mode number, which may explain the quantitative difference between the global dispersion relation and its local approximation from the conventional local theory.},
doi = {10.1063/1.5043323},
journal = {Physics of Plasmas},
number = 9,
volume = 25,
place = {United States},
year = {2018},
month = {9}
}

Works referenced in this record:

The theory of the stability of non-uniform plasma and anomalous diffusion
journal, January 1964

  • Galeev, A. A.; Moiseev, S. S.; Sagdeev, R. Z.
  • Journal of Nuclear Energy. Part C, Plasma Physics, Accelerators, Thermonuclear Research, Vol. 6, Issue 6
  • DOI: 10.1088/0368-3281/6/6/309

Electromagnetic effects on dynamics of high-beta filamentary structures
journal, January 2015

  • Lee, Wonjae; Umansky, Maxim V.; Angus, J. R.
  • Physics of Plasmas, Vol. 22, Issue 1
  • DOI: 10.1063/1.4905639

Two-fluid tearing instability in force-free magnetic configuration
journal, September 2004

  • Mirnov, V. V.; Hegna, C. C.; Prager, S. C.
  • Physics of Plasmas, Vol. 11, Issue 9
  • DOI: 10.1063/1.1773778

Nonlinear magnetohydrodynamics simulation using high-order finite elements
journal, March 2004

  • Sovinec, C. R.; Glasser, A. H.; Gianakon, T. A.
  • Journal of Computational Physics, Vol. 195, Issue 1
  • DOI: 10.1016/j.jcp.2003.10.004

Drift wave stability under linear theta-pinch conditions
journal, January 1972


A first-principles predictive model of the pedestal height and width: development, testing and ITER optimization with the EPED model
journal, August 2011


Turbulent reconnection and its implications
journal, May 2015

  • Lazarian, A.; Eyink, G.; Vishniac, E.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 373, Issue 2041
  • DOI: 10.1098/rsta.2014.0144

Analytical and numerical treatment of resistive drift instability in a plasma slab
journal, May 2016


Three-dimensional computation of drift Alfvén turbulence
journal, October 1997


Electromagnetic drift waves dispersion for arbitrarily collisional plasmas
journal, July 2015

  • Lee, Wonjae; Angus, J. R.; Krasheninnikov, Sergei I.
  • Physics of Plasmas, Vol. 22, Issue 7
  • DOI: 10.1063/1.4927135

Electromagnetic effects on plasma blob-filament transport
journal, August 2015


Effect of Drift Waves on Plasma Blob Dynamics
journal, May 2012


Effects of parallel electron dynamics on plasma blob transport
journal, August 2012

  • Angus, Justin R.; Krasheninnikov, Sergei I.; Umansky, Maxim V.
  • Physics of Plasmas, Vol. 19, Issue 8
  • DOI: 10.1063/1.4747619

Collisional drift instability of a weakly ionized argon plasma
journal, February 1980


    Works referencing / citing this record:

    Electromagnetic Viscous-Resistive-Drift-Wave Instability in Burning Plasma
    journal, May 2019