Looking for a thread to drop this in. Close enough? https://theansweris27.com/naca-submerged-duct/
theansweris27.com is an interesting site. They show the wind tunnel they replicate in CFD and the mesh representing the atmosphere.
It ends with an example of a Ferrari that moves away from a submerged duct to a more scoop-like form.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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