Is There a Tool for Aerodynamic Calculations?

It works to the extent that it approximates the ideal calculation. Needing to calculate approximations to a law doesn't change the law. Planes are still atoms, they aren't governed by special exceptions and nature for aerodynamic calculations. It's probably not something you would think of when you're making a propeller for the Wright brothers plane but the more intense you get, the more the approximations aren't good anymore.