stella: An operator-split, implicit–explicit δf-gyrokinetic code for general magnetic field configurations
Resource type
Authors/contributors
- Barnes, M. (Author)
- Parra, F. I. (Author)
- Landreman, M. (Author)
Title
stella: An operator-split, implicit–explicit δf-gyrokinetic code for general magnetic field configurations
Abstract
Here we present details of an operator-split, implicit–explicit numerical scheme for the solution of the gyrokinetic-Poisson system of equations in the local limit. This scheme has been implemented in a new code called stella, which is capable of evolving electrostatic fluctuations with full kinetic electron effects and an arbitrary number of ion species in general magnetic geometry. We demonstrate the advantages of this mixed approach over a fully explicit treatment and provide linear and nonlinear benchmark comparisons for both axisymmetric and non-axisymmetric magnetic equilibria.
Publication
Journal of Computational Physics
Volume
391
Pages
365-380
Date
2019-08-15
Journal Abbr
Journal of Computational Physics
ISSN
0021-9991
Short Title
stella
Accessed
8/29/24, 10:22 AM
Library Catalog
ScienceDirect
Extra
27 citations (Crossref/DOI) [2024-10-03]
27 citations (Crossref/DOI) [2024-10-02]
27 citations (Crossref/DOI) [2024-10-02]
Citation
Barnes, M., Parra, F. I., & Landreman, M. (2019). stella: An operator-split, implicit–explicit δf-gyrokinetic code for general magnetic field configurations. Journal of Computational Physics, 391, 365–380. https://doi.org/10.1016/j.jcp.2019.01.025
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