Session KP01 - Poster Session III.
POSTER session, Tuesday afternoon, March 23
Exhibit Hall, GWCC
A nonlinear 3D code in cylindrical geometry is being developed forthe stability studies of FRC.Two numerical schemes have been implemented: a hybrid scheme with particle ions and fluid electrons, and MHD/particle scheme in which background plasma is described by MHD equations and energetic ions are treated using particle simulations. MHD equations are advanced on a finite difference mesh in a cylindrical coordinate system, while particle pushing is done on a 3D Cartesian grid. Full ion dynamics is retained in order to include large-orbit effects (with s \sim 1), which are important for the tilt mode stabilization in FRC. In contrast to the previous work\delta f method is utilized to reduce numerical noise in the simulations. The code will be applied to the study of 2D axisymmetric equilibrium configurations and for 3D simulations of kinetic stabilization of the tilt mode in FRC.