Quote:
Originally Posted by Hersbird
I believe you can get close with a model but you also have to scale the speed down the same. It sill will give a .05-.1 higher Cd even then. Better would simply use the real height and width as it's not a real wind tunnel but a computer simulation.
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Scale *up* the speed. Reynolds number is proportional to test length and speed, so if length decreases speed must increase to achieve the same Re.