Applications of Hybrid Numerical-Simulation Methods to Magnetic-Confinement Systems. Annual Technical Report, 1 January 1983-31 December 1983

摘要

During this contract period we started out to extend and refine our kinetic modeling of wall plasma near divertors or limiters to include, in particular, prediction of sputtering rates. As a result of seeing data indicating edge temperatures below the kinetic range, and some questions about previous fluid modeling, we also began our own fluid modeling. One of the fluid results which we found interesting is a class of solutions which are not stationary but exhibit periodic relaxation oscillations. We speculate about a possible relationship between these solutions and the H-mode. Also during this period we have done calculations of Argon radiation power at typical tokamak densities and over a wide range of temperatures. The results of this work may have interesting implications for main plasma energy containment and ignition as well as for edge plasma control. (ERA citation 09:001629)