Pascal Aellig
Pascal Aellig is a PhD student in computational geosciences at the Johannes Gutenberg University Mainz. He co-develops JustRelax.jl and other packages in the framework of geodynamics with the focus on the evolution of magmatic systems of various scales.
Sessions
JustRelax.jl (de Montserrat et al., (2026)) is an open-source, highly portable, and high-performance package designed for geodynamic modeling. It employs the Accelerated Pseudo-Transient (APT) method to solve the Stokes and diffusion equations, making it well-suited to exploit Graphics Processing Units (GPUs). It incorporates a wide range of features critical to computational geodynamics, including complex and highly non-linear rheologies, free surface, and a particle-in-cell method to advect material information.
MovingBoundaryMinerals.jl (Stroh et al., 2025) is a Finite Element package to model diffusion-limited growth. The package combines grid refinement together with a moving boundary in order to resolve sharp gradients next to the interface of growing crystals. The moving boundary is treated via a thermodynamically-consistent diffusion solver. We provide benchmarks and examples that can be used in petrology and materials science.