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Old 01-24-2019, 10:55 AM   #141 (permalink)
kach22i
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Quote:
Originally Posted by freebeard View Post
Maybe raising and lowering the ball shows speed difference in the center vs up against the wall.
I think the red ball/sphere is a test object with known Cd for calibration purposes- but could be wrong.

It is so simple looking that I want it to work, but also odd that it does not match other scale model wind tunnels I have seen.

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