Quote:
Originally Posted by freebeard
Possibly a subject for a Youtube video? I don't comment there.
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I am not sure that there is any YouTube video content needed.
(1) All pressure measurements show low pressures over the roof in cars with attached flows (ie all that I have wool tufted in 35+ years).
(2) Nearly all wool tufting of
the side of cars shows tufts being pulled upwards (to at least a degree) towards the roof.
My books have literally dozens of pics showing these features, and while I haven't looked this specifically in my YouTube videos, since most of the pics are from ny books, I am sure they show the same.
Now, as to the
impact on lift and drag of this airflow direction, I have much less idea! It's something that - like many car aero things - is still within the research / testing regime of the amateur.