5 papers
Derivation and application of sheath boundary conditions for drift-kinetic simulations in a linear plasma device based on a gyromoment approach
Jacob Emil Mencke, Thomas Stucker, Paolo Ricci
Boundary conditions for a drift-kinetic model at the collisional presheath entrance with perpendicular incidence of the magnetic field to the wall are derived and numerically imple…
The L-H transition in tokamaks: power threshold, density minimum and toroidal-field asymmetry
Brenno De Lucca, Paolo Ricci, Benoit Labit +3
The physical mechanism underlying the L--H transition in tokamaks has remained an open problem for over forty years. We present three-dimensional flux-driven two-fluid simulations…
Comprehensive full-f drift-kinetic and delta-f gyrokinetic simulations of a linear plasma device based on the gyro-moment approach
Jacob Emil Mencke, Paolo Ricci
First of a kind comprehensive full-f drift-kinetic (DK) and -f gyrokinetic (GK) turbulent simulations are carried out in a linear plasma device. We self-consistently derive an…
The hot-electron closure of the moment-based gyrokinetic plasma model
A. C. D. Hoffmann, P. Giroud-Garampon, P. Ricci
We derive the hot-electron-limit (HEL) closure for the moment hierarchy used to solve the gyrokinetic equations, known as the gyromoment (GM) approach. By expanding the gyroaveragi…
Conservative formulation of the drift-reduced fluid plasma model
Brenno De Lucca, Paolo Ricci, Micol Bassanini +2
A conservative formulation of the drift-reduced fluid plasma model is constructed by analytically inverting the implicit relation defining the polarisation velocity as a function o…