Numerical Simulation of Resistive Drift Wave Turbulence in a Linear Device

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Author(s)

Abstract

The three-field reduced MHD model was extended to describe the resistive drift wave turbulence in cylindrical magnetized plasmas. Using this model, linear eigenmode analyses are performed to identify the unstable modes, and the parameter scan predicts the necessary condition for excitation of the resistive drift wave turbulence. It is found that ion-neutral collisions strongly stabilize the resistive drift wave, and give a threshold condition for the turbulence excitation. Nonlinear simulations clarify the stabilizing effects of the quasi-linear flattening of the density profile and of the generated mean potential profile. It is pointed out that the parallel nonlinearity is important in the formation of a potential structure, which plays an essential role in mode saturation.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 76(4), "44501-1"-"44501-12", 2007-04-15

    The Physical Society of Japan (JPS)

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Codes

  • NII Article ID (NAID)
    110006278047
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00319015
  • NDL Article ID
    8706185
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  NDL  NII-ELS 
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