4 papers
Enhanced performance in quasi-isodynamic max- stellarators with a turbulent particle pinch
G. G. Plunk, A. G. Goodman, P. Xanthopoulos +7
Recent stellarator reactor designs demonstrate mostly outward turbulent particle transport, which, without advanced fueling technology, inhibits the formation of density gradients…
Nonlinear magnetohydrodynamic modeling of ideal ballooning modes in high- Wendelstein 7-X plasmas
Yao Zhou, K. Aleynikova, Chang Liu +1
We present nonlinear magnetohydrodynamic (MHD) simulations of high- Wendelstein 7-X plasmas using the stellarator extension of the M3D- code, building on the recent work t…
Resonant theory of kinetic ballooning modes in general toroidal geometry
P. Mulholland, A. Zocco, M. C. L. Morren +4
The linear theory of the kinetic-ballooning-mode (KBM) instability is extended to capture a weakly-driven regime in general toroidal geometry where the destabilization is caused by…
Benign saturation of ideal ballooning instability in a high-performance stellarator
Yao Zhou, K. Aleynikova, Chang Liu +1
To examine the robustness of the designed 5% -limit for high-performance operation in the W7-X stellarator, we undertake nonlinear magnetohydrodynamic (MHD) simulations of pres…