Blar i forfatter "Kendl, Alexander"

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    • Isotope effect on filament dynamics in fusion edge plasmas 

      Meyer, Ole; Kendl, Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-20)
      The influence of the ion mass on filament propagation in the scrape-off layer of toroidal magnetised plasmas is analysed for various fusion relevant majority species, like hydrogen isotopes and helium, on the basis of a computational isothermal gyrofluid model for the plasma edge. Heavy hydrogen isotope plasmas show slower outward filament propagation and thus improved confinement properties ...

    • Non-Oberbeck-Boussinesq zonal flow generation 

      Held, M; Wiesenberger, M; Kube, Ralph; Kendl, Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-26)
      Novel mechanisms for zonal flow (ZF) generation for both large relative density fluctuations and background density gradients are presented. In this non-Oberbeck–Boussinesq (NOB) regime ZFs are driven by the Favre stress, the large fluctuation extension of the Reynolds stress, and by background density gradient and radial particle flux dominated terms. Simulations of a nonlinear full-F gyro-fluid ...