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Advanced Finite Element Modeling of the Tokamak Plasma Edge

✍ Scribed by R. Zanino

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
712 KB
Volume
138
Category
Article
ISSN
0021-9991

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✦ Synopsis

A finite element fluid model of the two-dimensional axisymmetric plasma edge region in a tokamak is presented. A pure plasma with different electron and ion temperatures is considered, where its evolution is driven by sources. The sources are due to the interaction between plasma and neutrals recycling at the walls, which are described by a Monte-Carlo code. A realistic curvilinear (poloidal divertor) geometry is treated and can be discretized both with an unstructured and with a structured flux-surface-fitted mesh generator. The convergence of the code is demonstrated numerically and the results are compared with those of a reference finite volume (conservative) code.

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