A Question To All You Aerodynamicists

[MantaRay]

One thing puzzles me slightly about wind tunnels and how the results obtained in one correlate with true effects. A wind tunnel creates moving air [all very turbulent and dynamic] against a stationary object. In real life it's the object moving through still "tidy" air. So, are real life results actually better than the wind tunnel predicts or is it the other way around? I'm not for one minute doubting how useful a wind tunnel is for development work.

[ukbod2015]

The results from any kind of pressure modelling are always subjective but they have some pretty fancy programs which can extrapolate all kinds of variations from the pressure data provided. Probably more accurate on a car than a plane because of the range of stimuli exerted in 3 planes.