Welcome to GUERNICA

GUERNICA is a deterministic kinetic neutral transport code for fusion edge plasmas. It solves the neutral kinetic equation in two spatial dimensions and two or three velocity dimensions, using a GLL discontinuous Galerkin spectral element method on quadrilateral meshes in space and the discrete velocity method in velocity. Neutrals evolve against prescribed electron and ion backgrounds, with ionization, recombination, charge exchange, BGK neutral–neutral collisions, volume sources, and wall recycling. Both transient and steady-state solvers are available, and the code runs on CPUs, with OpenMP, or on NVIDIA GPUs through MFEM. The GUERNICA source code is hosted on GitHub at github.com/jgabriel6157/GUERNICA. The repository is currently private. Access can be granted for academic use upon request by emailing jgabriel@wm.edu.