6 citations · 10 across the 4 of their papers we have counts for
4 papers
A Subgrid Model for Electron-Scale Turbulent Transport in Global Ion-Scale Gyrokinetic Simulations of Tokamak Plasmas
Stefan Tirkas, Yang Chen, Scott Parker
A subgrid electron-temperature-gradient (ETG) model is demonstrated here which averages local electron-scale turbulence from the GENE code over intermediate scales in space and tim…
Comparison of saturation rules used for gyrokinetic quasilinear transport modeling
Scott E. Parker, Calder Haubrich, Qiheng Cai +2
Theory-based transport modeling has been widely successful and is built on the foundations of quasilinear theory. Specifically, the quasilinear expression of the flux can be used i…
Zonal Flow Excitation in Electron-Scale Tokamak Turbulence
Stefan Tirkas, Haotian Chen, Gabriele Merlo +2
The derivation of an intermediate-scale gyrokinetic-electron theory in nonuniform tokamak plasmas [Chen H. et al 2021 Nucl. Fusion 61 066017] has shown that a Navier-Stokes type no…
Excitation of Zonal Flow by Intermediate-Scale Toroidal Electron Temperature Gradient Turbulence
Haotian Chen, Stefan Tirkas, Scott E. Parker
We show that zonal flow can be preferentially excited by intermediate-scale toroidal electron temperature gradient (ETG) turbulence in tokamak plasmas. Previous theoretical studies…