Supercomputing and plasma physics
One of the main applications of plasma physics today is in the effort to achieve thermonuclear fusion by confining deuterium and tritium at high temperature in a magnetic bottle, such as a tokamak device. Two areas of research in the physics of tokamaks and controlled fusion, where numerical simulation is indispensable, are the stability of the magnetically-confined plasma, and plasma heating by radiofrequency (RF) waves. Plasma stability has been modelled using one- and two-dimensional simplifications of the magnetohydrodynamic (MHD) theory. RF heating may be modelled using three approaches, the simplest being the cold model in which temperatures are neglected. This drastic simplification allows the study of tokamak 2D toroidal plasmas. Warm plasma models, assuming low temperatures, can also be used in 2D toroidal geometry, but the resolution of the wave field is marginal. Hot plasma models, in which temperature limits are imposed, are currently being analysed.
Bibliographic Reference: Article: EPFL Supercomputing Review, Numerical Simulation for Science and Technology, No. 2 (1990) pp. 19-21
Record Number: 199110052 / Last updated on: 1994-12-02
Original language: en
Available languages: en