In Lattice Boltzmann, the Wall Isn't on the Node — Bounce-Back and Zou-He Boundaries
·5 min read
The bounce rule that builds a no-slip wall, and where that wall really sits
How to Make an Outflow Stop Reflecting Sound — Navier–Stokes Characteristic Boundary Conditions
·5 min read
The single most common cause of compressible-solver blow-ups, tamed by one parameter σ