The Euler Eigensystem in an Arbitrary Direction — Three Waves, Two Repeats, One Singularity
·5 min read
Where the left eigenvector breaks when n̂ tilts, and the three conventions that dodge it
[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.