211 citations · 252 across the 8 of their papers we have counts for
8 papers · 1 filter
Simulation of ion temperature gradient driven modes with 6D kinetic Vlasov code
Mario Raeth, Klaus Hallatschek, Katharina Kormann
With the increase in computational capabilities over the last years it becomes possible to simulate more and more complex and accurate physical models. Gyrokinetic theory has been…
High frequency non-gyrokinetic turbulence at tokamak edge parameter
Mario Raeth, Klaus Hallatschek
First of a kind 6D-Vlasov computer simulations of high frequency ion Bernstein wave turbulence for parameters relevant to the tokamak edge show transport comparable to sub-Larmor-f…
The field line map approach for simulations of magnetically confined plasmas
Andreas Stegmeir, David Coster, Omar Maj +2
In the presented field line map approach the simulation domain of a tokamak is covered with a cylindrical grid, which is Cartesian within poloidal planes. Standard finite-differenc…
The nonlinear dispersion relation of geodesic acoustic modes
Robert Hager, Klaus Hallatschek
The energy input and frequency shift of geodesic acoustic modes (GAMs) due to turbulence in tokamak edge plasmas are investigated in numerical two-fluid turbulence studies. Surpris…
Predicting Zonal Flows -- A Comprehensive Reynolds-Stress Response-Functional from First-Principles-Plasma-Turbulence Computations
Niels Guertler, Klaus Hallatschek
Turbulence driven zonal flows play an important role in fusion devices since they improve plasma confinement by limiting the level of anomalous transport. Current theories mostly f…
Radial propagation of geodesic acoustic modes
Robert Hager, Klaus Hallatschek
The GAM group velocity is estimated from the ratio of the radial free energy flux to the total free energy applying gyrokinetic and two-fluid theory. This method is much more robus…