A Galerkin method for the weak formulation of current diffusion and force balance in tokamak plasmas
نویسندگان
چکیده
This paper presents a new numerical approach to the simulation of plasma equilibrium evolution in tokamaks. It is based on an unusual coupling formulation current diffusion and axi-symmetric equations that does not require use flux-surface averages allows for fast Newton-type iterations schemes. A detailed derivation coupled system non-linear its discretization provided. Numerical examples, implementation free-boundary code FEEQS, highlight feasibility applicability.
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2021
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2021.110483