Separation of Evans and Hiro currents in VDE of tokamak plasma
POSTER
Abstract
Progress on the Disruption Simulation Code (DSC-3D) development and benchmarking will be presented. The DSC-3D is one-fluid nonlinear time-dependent MHD code, which utilizes fully 3D toroidal geometry for the first wall, pure vacuum and plasma itself, with adaptation to the moving plasma boundary and accurate resolution of the plasma surface current. Suppression of fast magnetosonic scale by the plasma inertia neglecting will be demonstrated. Due to code adaptive nature, self-consistent plasma surface current modeling during non-linear dynamics of the Vertical Displacement Event (VDE) is accurately provided. Separation of the plasma surface current on Evans and Hiro\footnote{L.E. Zakharov, Phys. Plasmas, 15, 062507 (2008)}$^,$\footnote{L.E. Zakharov, S.A. Galkin, S.N. Gerasimov, Phys. Plasmas 19, 055703 (2012)} currents during simulation of fully developed VDE, then the plasma touches in-vessel tiles, will be discussed.
*Work is supported by the US DOE SBIR grant \# DE-SC0004487.