Conditional Eddies in Plasma Turbulence

Helene Johnsen, Hans Pécseli, J. Trulsen

    Research output: Contribution to journalLetterpeer-review


    Conditional structures, or eddies, in turbulent flows are discussed with special attention to electrostatic turbulence in plasmas. The potential variation of these eddies is obtained by sampling the fluctuations only when a certain condition is satisfied in a reference point. The resulting structure has a simple physical interpretation. It is here demonstrated that correlation functions of the type ( phi n(x1,t1) phi (x2,t2)) for n=1, 2, . . ., which are relatively easy to obtain, contain sufficient information to construct the conditional eddies. Experimentally obtained correlation functions illustrate the analysis.
    Original languageEnglish
    JournalPlasma Physics and Controlled Fusion
    Issue number9B
    Pages (from-to)1519-1523
    Publication statusPublished - Sept 1986


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