[Paper Review] Stop letting sound speed swallow your CFL — Peluchon (2017) acoustic-transport IMEX
·6 min read
Splitting acoustic from transport gives a 1/M time-step gain on the five-equation model
[Paper Review] Why Roe breaks at low Mach — Hope–Collins (2022) and three artificial-diffusion scalings
·6 min read
How a standard Roe flux collapses at M=0.01, and the three scalings the asymptotics prescribe.