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Old 03-13-2019, 02:32 PM   #799 (permalink)
COcyclist
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Join Date: Dec 2007
Location: NW Colo
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TDi - '04 VW Golf
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Thank you for posting. These are fascinating.

The smoke on this one looks fake to me. The lower streamline goes right through the spoiler at the edge of the roof.


I have been reading Julian Edgar’s book. He states that the counter-rotating vortices start at the A pillar. This view would seem to support that. Thanks.
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https://ecomodder.com/forum/showthre...tml#post621801


Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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