Study of Plasma Detachment in a Simplified 2D Geometry using UEDGE.

Groth, M. ; Mahdavi, A. M. ; Porter, G. D. ; Rognlien, T. D.

Technical Information Center Oak Ridge Tennessee

关键词: Plasma detachment;    Geometry;    Heating;    Ionization;    Plasma;   

RP-ID  :  DE200415006843

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The location of the ionization front in a generic, detached plasma has been studied in a two-dimensional slab geometry by varying the core plasma density and input heating power. The ratio of the recombination to ionization current and the momentum losses in the computational domain have been used to quantify the degree of detachment. Contours of constant ratio of these parameter in the core plasma density--heating power parameter space show that at high input power higher momentum losses can be achieved even at low density. High fraction of recombination, however, require high core densities to sufficiently separate the plasma from the target plate.