74 citations · 675 across the 28 of their papers we have counts for
7 papers · 2 filters
Moment-Based Approach to the Flux-Tube linear Gyrokinetic Model
B. J. Frei, A. C. D. Hoffmann, P. Ricci +2
This work reports on the development and numerical implementation of the linear electromagnetic gyrokinetic (GK) model in a tokamak flux-tube geometry using a moment approach based…
Gyrokinetic simulations of plasma turbulence in a Z-pinch using a moment based approach and advanced collision operators
A. C. D. Hoffmann, B. J. Frei, P. Ricci
The first nonlinear gyrokinetic simulations obtained using a moment approach based on the Hermite-Laguerre decomposition of the distribution function are presented, implementing ad…
Turbulent transport regimes in the tokamak boundary and operational limits
M. Giacomin, P. Ricci
Two-fluid, three-dimensional, flux-driven, global, electromagnetic turbulence simulations carried out by using the GBS code are used to identify the main parameters controlling tur…
First-principles density limit scaling in tokamaks based on edge turbulent transport and implications for ITER
M. Giacomin, A. Pau, P. Ricci +2
A first-principles scaling law, based on turbulent transport considerations, and a multi-machine database of density limit discharges from the ASDEX Upgrade, JET and TCV tokamaks,…
Numerical Implementation of the Improved Sugama Collision Operator Using a Moment Approach
B. J. Frei, S. Ernst, P. Ricci
The numerical implementation of the linearized gyrokinetic (GK) and drift-kinetic (DK) improved Sugama (IS) collision operators, recently introduced by Sugama et al. [Phys. Plasmas…
Global fluid simulation of plasma turbulence in a stellarator with an island divertor
A. J. Coelho, J. Loizu, P. Ricci +1
Results of a three-dimensional, flux-driven, electrostatic, global, two-fluid turbulence simulation for a 5-field period stellarator with an island divertor are presented. The nume…
Local Gyrokinetic Collisional Theory of the Ion-Temperature Gradient Mode
B. J. Frei, A. C. R. Hoffmann, P. Ricci
We present a study of the linear properties of ion temperature gradient (ITG) modes with collisions modelled by the linearized gyrokinetic (GK) Coulomb collision operator (Frei et…