[Paper Review] Suspect the Cell After Solving It — A Posteriori MOOD Subcell Limiter for DG
·6 min read
Solve first, doubt later — reproducing the MOOD limiter of Ioriatti, Dumbser, Loubère (2020)
Where Negative Density Leaks In — A Positivity-Preserving Flux Limiter for Blast Waves
·5 min read
The one-line θ-blend that keeps ρ above zero in a Le Blanc shock tube.
[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.