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CPHYSICS
2004

Modeling plasma-wall interactions in First Wall-Limiter geometry

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Modeling plasma-wall interactions in First Wall-Limiter geometry
We test the standard edge plasma code B2-solps5.0 on a model First-Wall Limiter (FWL) geometry. The presence of a tangency point between the solid wall and the magnetic separatrix introduces a singular point in the geometry. A quadrilateral computational mesh can fit the given configuration only if it is highly distorted, constituting a severe test for any numerical scheme. The original 5-point molecule adopted by B2-solps5.0 fails to solve the plasma transport equations near the singular point. A correction scheme is proposed, which is equivalent to adopting a 9-point stencil. 2004 Elsevier B.V. All rights reserved.
F. Subba, R. Zanino
Added 17 Dec 2010
Updated 17 Dec 2010
Type Journal
Year 2004
Where CPHYSICS
Authors F. Subba, R. Zanino
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