Thread: Drag reduction modifications in wind tunnel: Audi A2 from Cd 0.288 to 0.204
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Old 06-21-2019, 05:39 PM   #38 (permalink)
California98Civic
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Quote:
Originally Posted by freebeard View Post
Interesting. Any idea of what 'suction upstream of the belt' means? Aren't the belt and the air moving at the same speed?
I would bet that the belt doesn't encompass the entire floor inside the wind tunnel. So that would mean there must be an area ahead of the car and head of the belt but in the windstream where the air is passing over the stationary floor. The point at which the air flow encounters the belt would be interesting in terms of turbulence, wouldn't it?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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