Implicit Methods for the Magnetohydrodynamic Description of Magnetically Confined Plasmas

Jardin, S. C.

Princeton University. Plasma Physics Laboratory.

关键词: Saturation;    Magnetic Fields;    Computational Physics, Computer Simulation;    70 Plasma Physics And Fusion Technology;    Geometry;   

DOI  :  10.2172/989197
RP-ID  :  PPPL-4559
RP-ID  :  DE-ACO2-09CH11466
RP-ID  :  989197

美国|英语

来源: UNT Digital Library

【 摘 要 】

Implicit algorithms are essential for predicting the slow growth and saturation of global instabilities in today’s magnetically confined fusion plasma experiments. Present day algorithms for obtaining implicit solutions to the magnetohydrodynamic (MHD) equations for highly magnetized plasma have their roots in algorithms used in the 1960s and 1970s. However, today’s computers and modern linear and non‐linear solver techniques make practical much more comprehensive implicit algorithms than were previously possible. Combining these advanced implicit algorithms with highly accurate spatial representations of the vector fields describing the plasma flow and magnetic fields and with improved methods of calculating anisotropic thermal conduction now makes possible simulations of fusion experiments using realistic values of plasma parameters and actual configuration geometry.