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Old 09-02-2020, 02:18 PM   #7 (permalink)
aerohead
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blockage ratio

Quote:
Originally Posted by JulianEdgar View Post
A2 wind tunnel:



Darko:



Mercedes wind tunnel:



I suggest people look up 'wind tunnel blockage factor' and then make your own judgement. Basically, car manufacturers, F1 teams (etc) don't build huge wind tunnels because they just like spending money.
According to Hucho, reliable, zero-yaw numbers have been recorded in tunnels with blockage ratios as high as 30%.
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