3 papers
physics.plasm-ph2026
On the transition to large fluxes and access to second stability in gyrokinetic simulations of electromagnetic turbulence in STEP
Daniel Kennedy, Yujia Zhang, Toby Adkins +6
The paper investigates why large heat fluxes appear in gyrokinetic simulations of electromagnetic turbulence in the STEP tokamak, identifying a critical q²βₑ threshold that trigger…
physics.plasm-ph2025
Reducing turbulent transport in tokamaks by combining intrinsic rotation and the low momentum diffusivity regime
Haomin Sun, Justin Ball, Stephan Brunner +8
Based on the analysis of a large number of high-fidelity nonlinear gyrokinetic simulations, we propose a novel strategy to improve confinement in spherical tokamak plasmas by combi…
physics.plasm-ph2025
A quasi-linear model of electromagnetic turbulent transport and its application to flux-driven transport predictions for STEP
M. Giacomin, D. Dickinson, W. Dorland +7
A quasi-linear reduced transport model is developed from a database of high- electromagnetic nonlinear gyrokinetic simulations performed with Spherical Tokamak for Energy Produ…