3 papers
physics.plasm-ph2020
Angular momentum and rotational energy of meanflows in toroidal magnetic fields
Matthias Wiesenberger, Markus Held
We derive the balance equation for the Favre averaged angular momentum in toroidal not necessarily axisymmetric magnetic field equilibria. We find that the components of angular mo…
physics.plasm-ph2019
Padé-based arbitrary wavelength polarization closures for full-F gyro-kinetic and -fluid models
Markus Held, Matthias Wiesenberger, Alexander Kendl
We propose a solution to the long-standing short wavelength polarization closure shortfall of full-F gyro-fluid models. This is achieved by first finding an appropriate quadratic f…
physics.plasm-ph2018
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…