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GBS - Astrophysics Data System

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Last Updated: 02 June 2022

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The GBS code for the self-consistent simulation of plasma turbulence and kinetic neutral dynamics in the tokamak boundary

"GBS is a three-dimensional, flux-driven, global, two-fluid turbulence code developed for the self-consistent simulation of plasma turbulence and kinetic neutral dynamics in the tokamak boundary. " The simulation domain has been extended to the entire plasma volume in the latest version, avoiding an artificial boundary with the center and thus retaining the core-edge-SOL interplay. A new iterative solver for the Poisson and Ampse equations is introduced, resulting in a dramatic speed-up of the code in terms of the use of direct solvers, which also allows for more precise electromagnetic simulations that avoid the use of Boussinesq approximation. A new MPI parallelization is being used to convert the plasma and neutral models in parallel, thereby increasing the code scalability and improving the code scalability. A simulation of a TCV tokamak discharge is shown as an example of the current GBS' simulation capabilities.

Source link: https://ui.adsabs.harvard.edu/abs/2022JCoPh.46311294G/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions