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P: Fachverband Plasmaphysik
P 17: Poster: Plasma-Wand-Wechselwirkung
P 17.5: Poster
Wednesday, April 1, 2009, 17:30–19:30, Foyer des IfP
Evaluation and Adaptation of Tree-Algorithms for kinetic fusion edge plasma simulation — •Benjamin Berberich1, Detlev Reiter1, and Paul Gibbon2 — 1Institut für Energieforschung - Plasmaphysik, Forschungszentrum Jülich — 2Jülich Supercomputing Centre
A wide range of 2- and 3-dimensional (in configuration space) computer simulation codes are currently developed and applied in magnetic fusion research for interpretative and predictive studies, in particular for the areas close to the wall of the plasma container (vacuum chamber). This domain is characterized by a complex interaction of plasma-chemical and turbulent processes. The models contain both empirical and ``first principles" based sub-modules. The long term goal of model and code development is the systematic replacement of ``ad hoc" test particles (or charged fluid elements) by ``ab initio" models, in particular aided by increasing HPC resources (massively parallel computing). The self-consistent electrical field, obtained from the position of charged test particles, or, in fluid approximations, of charged ``fluid parcels", is one such component. For this purpose, but in other areas of application, so called tree-algorithms have proven to be highly efficient. In the present work a feasibility study, adaptation and application of a 3-dimensional, electrostatic tree code to typical fusion reactor edge plasma physics issues is carried out. First results of this study will be presented.