continuum-ballistic coupling 1hybrid gas dynamics 1kinetic methods 1Navier-Stokes-Fourier 1scale-space limiter 1
From the 1 of 3 linked papers with an AI index.
3 papers
math.NA2026
Central-Hermite Sensing and Collision for Frame-Robust Order-Resolved Relaxation on D3Q125
Bjørn Wu
Raw-Hermite sensing and collision on a fixed discrete-velocity set can convert a uniform translation into artificial coupling between nominally distinct nonequilibrium orders. We d…
math.NA2026
Hierarchical Log-Gaussian Relaxation on a Fixed D3Q125 Velocity Set
Bjørn Wu
We develop a hierarchical order-resolved relaxation model for a fixed D3Q125 discrete-velocity kinetic formulation. Conventional adaptive collision models often use one scalar rare…
math.NA2026
A Log-Gaussian Scale-Space Limiter for Hybrid Continuum--Ballistic Gas Dynamics
Bjørn Wu, Bjørn Wu
The paper proposes a log‑Gaussian scale‑space limiter that smoothly blends continuum Navier‑Stokes‑Fourier fluxes with kinetic half‑range Maxwellian fluxes for hybrid gas dynamics,…