Three-dimensional equilibria in axially symmetric tokamaks
- 19 December 2006
- journal article
- Published by National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 103 (51) , 19232-19236
Abstract
The NSTAB and TRAN computer codes have been developed to study equilibrium, stability, and transport in fusion plasmas with three-dimensional (3D) geometry. The numerical method that is applied calculates islands in tokamaks like the Doublet III-D at General Atomic and the International Thermonuclear Experimental Reactor. When bifurcated 3D solutions are used in Monte Carlo computations of the energy confinement time, a realistic simulation of transport is obtained. The significance of finding many 3D magnetohydrodynamic equilibria in axially symmetric tokamaks needs attention because their cumulative effect may contribute to the prompt loss of α particles or to crashes and disruptions that are observed. The 3D theory predicts good performance for stellarators.Keywords
This publication has 18 references indexed in Scilit:
- Bifurcated equilibria and magnetic islands in tokamaks and stellaratorsCommunications in Applied Mathematics and Computational Science, 2006
- Three-dimensional codes to design stellaratorsPhysics of Plasmas, 2002
- Quasiaxially symmetric stellarators with three field periodsPhysics of Plasmas, 1999
- Monte Carlo Simulation of TransportJournal of Computational Physics, 1996
- A stellarator configuration for reactor studiesNuclear Fusion, 1994
- A High Performance Spectral Code for Nonlinear MHD StabilityJournal of Computational Physics, 1994
- Preconditioned descent algorithm for rapid calculations of magnetohydrodynamic equilibriaJournal of Computational Physics, 1991
- BETAS, a spectral code for three‐dimensional magnetohydrodynamic equilibrium and nonlinear stability calculationsCommunications on Pure and Applied Mathematics, 1988
- Quasi-helically symmetric toroidal stellaratorsPhysics Letters A, 1988
- Solution of stellarator boundary value problems with external currentsNuclear Fusion, 1987