GIMLI: a toolkit connecting linear and non-linear magnetohydrodynamic regimes
Published in arXiv, 2026
Abstract.
Aims. In this work, we present the General Interface for MPI-AMRVAC / Legolas Interconnection (or GIMLI, for short) as a toolkit for in-depth (magneto)hydrodynamic studies combining linear and non-linear methods.
Methods. Acting as a bridge between the linear (M)HD spectroscopy code Legolas and the non-linear simulation code MPI-AMRVAC, GIMLI facilitates the initialization of non-linear MPI-AMRVAC simulations with linear solutions.
Results. We showcase this functionality on both Cartesian and cylindrical setups, covering representative plasma physical and astrophysical scenarios: Parker unstable magnetized atmospheres, interchange modes in a straight tokamak setup, resistive Harris sheet evolutions and thermally modified discrete Alfvén waves in coronal loops. We offer suggestions on how to combine linear and non-linear methods, and demonstrate how to leverage GIMLI in the process.
Preprint - arXiv:2609.29247
Recommended citation: De Jonghe, J., Brughmans, B. and Keppens, R. (2026). "GIMLI: a toolkit connecting linear and non-linear magnetohydrodynamic regimes." https://arxiv.org/abs/2609.29247