The saturation of toroidal Alfvén eigenmodes (TAE) due to the effect of magnetohydrodynamic (MHD) nonlinearities is analyzed. The saturation level scales as (aR0)52 (the ratio of the minor to the major radius of the torus), and for typical values of the inverse aspect ratio ε=aR0, it is comparable with that predicted when the saturation mechanism is due to a nonlinear reduction in the energetic particle drive. The MHD saturation mechanism is thus expected to be potentially relevant to the nonlinear TAE dynamics. © 1995 The American Physical Society.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)