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Abstract

A modified version of the global gyrokinetic PIC code developed in [1, 2] aimed at the investigation of the Ion-Temperature-Gradient (ITG)modes in 3D magnetic configurations is pesented. A new 3D parallel iterative solver of the gyrokinetic Poisson equation was implemented using the PETSc library. This equation, discretized with a finite-element method, is now solved in the PEST-1 magnetic system of coordinates, which are provided together with the equlibrium magnetic field by the equilibrium code VMEC.

The new version has been successfully compared for axisymmetric cases. Bench-marks show a significant increase of the required computation time over the 2D version due mainly to the particles, the new solver remaining unexpectedly fast. Preliminary results are shown with helical configurations. .

Additional information

Authors: JOST G, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);TRAN T M, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);APPERT k, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);COOPER W A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH);VILLARD L, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Federale de Lausanne (CH)
Bibliographic Reference: Article: Theory of Fusion Plasmas, (1999), 419-425
Record Number: 199910868 / Last updated on: 1999-06-25
Category: PUBLICATION
Original language: en
Available languages: en
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