Preprint
Sep 2026
Implicit-Explicit time integration scheme with Physics-based preconditioning for two-fluid tokamak boundary simulations
In this work, a globally stiffly accurate Implicit-Explicit (IMEX) Runge-Kutta scheme is developed and implemented in the GBS code [Ricci et al., Plasma Phys. Control. Fusion, 2012], for two-fluid plasma turbulence simulations. The stiffest phenomena, governed by shear Alfv\'en waves and parallel diffusion, are treated...
Micol Bassanini, Simone Deparis, Paolo Ricci et al.
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