POP Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Physics of Plasmas / Volume 19 / Issue 2 / ARTICLES / Basic Plasma Phenomena, Waves, Instabilities

Phys. Plasmas 19, 022106 (2012); http://dx.doi.org/10.1063/1.3684027 (9 pages)

Thermal force drift wave

C. P. Hung and A. B. Hassam

University of Maryland at College Park, College Park, Maryland 20742, USA

View MapView Map

(Received 5 August 2011; accepted 4 January 2012; published online 15 February 2012)

A drift instability of a collisional magnetized plasma, unstable due to the Braginskii thermal force but not requiring any direct dissipation such as resistivity or electron inertia, is examined. Unlike conventional drift-modes, the maximum growth rate of the thermal force drift wave (TFDW) is of order the drift frequency, making for a strongly turbulent nonlinear state. A 3D, magnetized two-fluid code is developed to allow the study of both ideal MHD modes as well as lower frequency drift modes. The governing equations are essentially the ideal MHD equations with the inclusion of Hall and thermal force terms in Ohm’s law. This set of equations is reduced in a finite β, long parallel wavelength, and small but significant Larmor radius ordering and tested for shear Alfven waves, parallel sound waves, and drift modes. The code is employed to recover the TFDW instability, to verify the code against the mode’s analytic linear characteristics, and to study the nonlinear behavior of the TFDW. The TFDW growth is strongly suppressed by parallel thermal conduction and thus this mode is more likely to be observed in low temperature plasmas.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EQUATIONS
  3. FINITE β REDUCED EQUATIONS
  4. LOW β REDUCED EQUATIONS, THE ELECTROSTATIC LIMIT
    1. Nonlinear low β equations
    2. Linearization
  5. NUMERICAL SIMULATIONS
    1. Equilibrium equations
    2. Equilibrium profiles
    3. Perturbations and unstable modes
    4. Comparison between local theory and simulations in finite beta linear regime
      1. Comparison of computed and analytic growth rates
      2. Dependence of growth rates on the Hall parameter
    5. Simulation in the nonlinear regime
  6. SUMMARY

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

drift instability, plasma drift waves, plasma magnetohydrodynamic waves, plasma nonlinear processes, plasma turbulence, solid-state plasma

PACS

  • 52.35.Kt

    Drift waves

  • 52.35.Qz

    Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.)

  • 52.35.Mw

    Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.)

  • 52.35.Bj

    Magnetohydrodynamic waves (e.g., Alfven waves)

  • 52.25.Xz

    Magnetized plasmas

  • 52.35.Ra

    Plasma turbulence

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3684027

PUBLICATION DATA

ISSN

1070-664X (print)  
1089-7674 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    W. Horton, Rev. Mod. Phys. 71, 735 (1999).

    J. F. Drake and A. B. Hassam, Phys. Fluids 24, 1262 (1981)PFLDAS000024000007001262000001.

    A. Hasegawa and M. Wakatani, Phys. Rev. Lett. 50, 682 (1983).

    D. W. Ross and S. M. Mahajan, Phys. Rev. Lett. 40, 324 (1978).

    L. D. Pearlstein and H. L. Berk, Phys. Rev. Lett. 23, 220 (1969).

    K. T. Tsang, P. J. Catto, J. C. Whitson, and J. Smith, Phys. Rev. Lett. 40, 327 (1978).

    P. N. Guzdar, J. F. Drake, D. McCarthy, A. B. Hassam, and C. S. Liu, Phys. Fluids B 5, 3712 (1993)PFBPEI000005000010003712000001.

    W. Gekelman, H. Pfister, Z. Lucky, J. Bamber, D. Leneman, and J. Maggs, Rev. Sci. Instrum. 62, 2875 (1991)RSINAK000062000012002875000001.


Figures (13) Tables (1)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Thermal force drift wave
  2. Spontaneous electromagnetic fluctuations in unmagnetized plasmas I: General theory and nonrelativistic limit
  3. 2.5D magnetohydrodynamic simulation of the Kelvin-Helmholtz instability around Venus—Comparison of the influence of gravity and density increase
  4. Enhancement of omnidirectional photonic band gaps in one-dimensional dielectric plasma photonic crystals with a matching layer
  5. Fully kinetic description of the linear excitation and nonlinear saturation of fast-ion-driven geodesic acoustic mode instability
Go to AIP Home
Copyright © American Institute of Physics
close