A comparison between different adaptive mesh generation strategies for edge plasma fluid modelling
Abstract
Fluid simulation of edge plasmas is a challenging task due to several reasons. Firstly, regions characterized by the formation of strong gradients form often near the divertor plates, due to the interaction of the plasma with the neutral atoms and ion impurities coming from the solid walls. These fronts move with time, and must be well captured by the computational mesh in order to obtain accurate descriptions of the plasma edge physics. Moreover, any attempt to realistically simulate the tokamak edge environment must face the complex Scrape-off-Layer geometry. The previous considerations have stimulated in the past many efforts to develop methods to provide meshes well suited for plasma simulation codes. Here we compare two adaptive mesh generation strategies developed independently by the authors. We perform the comparison by studying a set of test problems involving a wide range of geometrical configurations, and present also the analytical solution when it is available.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 1998
- Bibcode:
- 1998APS..DPP.G4Q49S