Quote:
Originally Posted by bondo
If you watch the aerolid flow visualization video closely you can see the tufts of yarn tend to split along the rear edge of the lid.
The yarn splits at center and the ones on the left point left and the ones on the right point right. This illustrates the two counter-rotating vortexs you speak of. What caught my attention was that the air stays attached pretty well along that lip.
Here is a scale model of a small electric car I did last year having vertical winds to control flow at the rear corners and behind the vehicle. The fins could be warped to optimum shapes for different speeds.
Bondo
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Brett,I did get a photo of that Cd 0.20 car I told you about and will mail soon.I'm behind on everything seems like.You all can call me Mr. Late!
Love your EV model!!!!!!!!!!!!!!!