There's a guy who tested his own LBM solver on a space shuttle model https://www.youtube.com/watch?v=5AzxwQpng0M at 60x higher resolution than the largest Space Shuttle CFD simulation ever done by NASA. Took 6 hours to calculate on an academia GPU setup.

Edit: He also says it's full engineering accuracy, not cheap CGI CFD that only has to look plausible. You could extract pressures, forces from the surfaces and use it for analysis. He's done extensive validation for his academic work.