Hybrid Model for Drift Waves in Fully Three-dimensional Plasmas: Theory and Applications

J. L.V. Lewandowski*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A novel fluid/gyro-kinetic hybrid model to study drift waves in low-pressure stellarator plasmas is presented. The ion population is modeled with the collisionless gyro-kinetic equation and the electron population is described using fluid equations. The model equations are written in straight-field-line coordinates and are valid for any magnetic configuration with closed nested magnetic surfaces. The geometrical effects which enter the final eigenmode equations are derived and discussed in some detail. The numerical method used to solve the coupled, time-dependent, along-the-field-line equations is described. The geometrical effects are discussed in some detail. Numerical calculations are carried out for a three-field period toroidal heliac with small global magnetic shear.

    Original languageEnglish
    Pages (from-to)259-287
    Number of pages29
    JournalAustralian Journal of Physics
    Volume53
    Issue number2
    DOIs
    Publication statusPublished - 2000

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