Equilibrium and stability of tokamaks
The numerical solution of tokamak equilibrium and stability is discussed. Schemes based on finite elements are especially suited to modelling the geometry of equilibrium and to yielding high-order resolution in the stability problem. The finite element method is therefore used for the computation of equilibria and for the linear normal-mode analysis. The normal-mode analysis is performed in a non-orthogonal flux co-ordinate system and leads to a non-symmetric matrix eigenvalue problem, where the eigenvalue is complex. It is emphasised that tokamak equilibria are required to be in flux co-ordinates for stability analysis.
Bibliographic Reference: Article: International Journal for Numerical Methods in Fluids, Vol. 11 (1990) pp. 791-809
Record Number: 199110123 / Last updated on: 1994-12-02
Original language: en
Available languages: en