Electrostatic Turbulence in Strongly Magnetized Plasmas

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    Abstract

    Turbulence in plasmas has been investigated experimentally and numerically.
    • On the experimental side the turbulent nature of the Kelvin-Helmholtz instability has been studied in a single-ended Q-machine. The development of coherent structures in the background of the turbulent flow has been demonstrated and the capability of structures of transporting plasma across the magnetic field-lines is explained in detail. The numerical investigations are divided into two parts:
    • Numerical simulations of the dynamics from the Q-machine experiments using
    spectral methods to solve the two-dimensional Navier-Stokes equations in a
    cylindrical geometry.
    • A numerical study of the Eulerian-Lagrangian transformation in a two-dimensional flow. Here the flow is made up by a large number of structures, where each individual structure is convected by the superposed flow field of all the others.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages80
    ISBN (Print)87-550-1865-3
    Publication statusPublished - 1993

    Keywords

    • Risø-R-659
    • Risø-R-659(EN)

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