How well can VMEC predict the initial saturation of external kink modes in near circular tokamaks and $l=2$ stellarators?

Rohan Ramasamy, Matthias Hoelzl, Sophia Henneberg +3

The equilibrium code, VMEC, is used to study external kinks in low $\beta$ tokamaks and $l=2$ stellarators. The applicability of the code when modelling nonlinear MHD effects is explor…