Simulation of plasma flux detachment in Alcator C-Mod and ITER

Autor:	D. A. Knoll, Sergei Krasheninnikov, T.D. Rognlien, G.M. McCracken, F. Wising, Bruce Lipschultz, D. J. Sigmar, Brian LaBombard
Rok vydání:	1997
Předmět:	Nuclear and High Energy Physics Chemistry Divertor Flux chemistry.chemical_element Ion current Plasma Quantitative Biology::Subcellular Processes Neon Nuclear Energy and Engineering Alcator C-Mod Heat flux General Materials Science Atomic physics Helium
Zdroj:	Journal of Nuclear Materials. :273-277
ISSN:	0022-3115
DOI:	10.1016/s0022-3115(97)80048-7
Popis:	Understanding the physics of divertor detachment is important since detached operation in ITER could reduce the target heat flux drastically, while aiding helium ash removal. In order to model detachment properly we have incorporated a parallel Navier-Stokes neutral model in UEDGE. In simulations of Alcator C-Mod we reproduce the partial detachment observed in experiments. A bifurcation to a MARFE has been found, similar to experiments. Volume recombination is a very important effect in removing the ion current to the target and we observe strong plasma flux detachment. Similar results have been found for ITER, with an order of magnitude decrease of the peak heat flux and a strong reduction of the target ion flux. Detachment has been induced with both neon and carbon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5e5b3b7d12f6c8dce40a50d0eaf89f3a https://doi.org/10.1016/s0022-3115(97)80048-7 Zobrazit plný text záznamu Full Text from ScienceDirect