65 citations · 450 across the 31 of their papers we have counts for
4 papers · 1 filter
The collisional drift wave instability in steep density gradient regimes
Markus Held, Matthias Wiesenberger, Alexander Kendl
The collisional drift wave instability in a straight magnetic field configuration is studied within a full-F gyro-fluid model, which relaxes the Oberbeck-Boussinesq (OB) approximat…
Interchange transport in electron-positron plasmas with ion impurities
Alexander Kendl
Interchange drive and cross-field transport of density filaments in quasi-neutral inhomogeneously magnetized electron-positron plasmas is shown to be strongly reduced by the presen…
Non-Oberbeck-Boussinesq zonal flow generation
Markus Held, Matthias Wiesenberger, Ralph Kube +1
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) r…
Streamline integration as a method for structured grid generation in X-point geometry
M. Wiesenberger, M. Held, L. Einkemmer +1
We investigate structured grids aligned to the contours of a two-dimensional flux-function with an X-point (saddle point). Our theoretical analysis finds that orthogonal grids exis…