The Outlet Is Open, Yet the Wave Comes Back — NSCBC and the Price of σ
·8 min read
At a non-reflecting outlet, one coefficient sets both reflection and pressure drift
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