Global gyrokinetic simulations of electromagnetic turbulence in stellarator plasmas
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377823000363
Abstract: Global electromagnetic turbulence is simulated in stellarator geometry using the gyrokinetic particle-in-cell code EUTERPE. The evolution of the turbulent electromagnetic field and the plasma profiles is considered at different values of the plasma beta and… read more here.
Keywords: gyrokinetic simulations; electromagnetic turbulence; simulations electromagnetic; stellarator ... See more keywords
Verification of the global gyrokinetic stellarator code XGC-S for linear ion temperature gradient driven modes
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Plasmas"
DOI: 10.1063/1.5109259
Abstract: XGC (X-point Gyrokinetic Code) is a whole-volume, total-f gyrokinetic particle-in-cell code developed for modelling tokamaks. In recent work, XGC has been extended to model more general 3D toroidal magnetic configurations, such as stellarators. These improvements… read more here.
Keywords: code; geometry; gradient driven; temperature gradient ... See more keywords
Nonlinear global gyrokinetic delta-f turbulence simulations in a quasi-axisymmetric stellarator
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Plasmas"
DOI: 10.1063/1.5140232
Abstract: We use the global gyrokinetic stellarator code XGC-S to look at turbulence physics in geometry of the proposed quasi-axisymmetric stellarator, QUASAR. The XGC-S code is first verified for nonlinear simulations of ion temperature gradient-driven turbulence… read more here.
Keywords: axisymmetric stellarator; stellarator; turbulence; physics ... See more keywords
Global gyrokinetic simulation of neoclassical ambipolar electric field and its effects on microturbulence in W7-X stellarator
Sign Up to like & getrecommendations! Published in 2021 at "Physics of Plasmas"
DOI: 10.1063/5.0047291
Abstract: Global neoclassical simulations of a model equilibrium of the W7-X stellarator find an ambipolar electric field with either an ion root or an electron root solution depending on the temperature ratio between electrons and ions.… read more here.
Keywords: field; stellarator; ambipolar electric; ion ... See more keywords