Coupled whole device simulations of plasma transport in tokamaks with the FACETS code
نویسندگان
چکیده
The FACETS project aims to provide computational tools for whole device simulation of tokamak transport for use in fusion applications. The framework provides flexibility by allowing users to choose the best model for a given physics target. Our goals are to develop accurate transport solvers using neoclassical and turbulent fluxes with varying degree of fidelity and computational complexity, including embedded gyrokinetic models. Accurate sources using both ICRH wave absorption and neutral beam injection, using parallel source components, are included. Modeling of the plasma edge using a fluid based component, UEDGE, is performed and coupled to the core solver. The core region is simulated using a newly developed parallel, nested iteration based nonlinear solver while the UEDGE uses nonlinear solves from the PETSc/SNES solver package. As a first application we present coupled core–edge simulations of pedestal buildup in the DIIID tokamak.
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