3 papers
math.NA2026
An Asymptotic-Preserving Micro--Macro Scheme for Plasma Simulations in Quasi-Neutral and Low-Mach-Number Regimes with Kinetic Upgrades
Zeyu Liu, Fabrice Deluzet, Chang Yang
We propose an asymptotic-preserving micro--macro method bridging a kinetic description of electrons and a low-frequency reduced model in which the electrons are a massless, quasi-n…
math.NA2026
A hierarchical sparse-grid particle method for the Vlasov--Poisson system
Fabrice Deluzet, Clément Guillet, Jacek Narski
We introduce a hierarchical sparse-grid (HSG) particle method for the numerical solution of the Vlasov--Poisson system. Sparse-grid PIC methods have so far been formulated within f…
physics.plasm-ph2025
Multiscale numerical methods for isothermal fluid models of confined plasmas
Chang Yang, Fabrice Deluzet
The aim of this work is to introduce a numerical method to cope with the multiscale nature of confined plasma physics. These investigations are focused on fluid plasma description…