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Old 12-12-2014, 06:27 PM   #32 (permalink)
aerohead
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Post#3

Quote:
Originally Posted by Hypermiler1995 View Post
I am using the link in post #3 of this thread as evidence for my theory, but I am not sure about the amount of drag created By the VGs.
*from Julian's article you can see that the VGs increased the drag on the Insight.Hucho came to the same conclusion on on everything he tested.
*There's nothing for the air to reattach to.
*So a boat tail with a trailing edge no more radical than the trailing edge of the Lancer (both down and in) would have a high degree of confidence as far as some drag reduction.It's a known quantity.
*Again,you'd have to calculate the Turbulent Boundary Layer thickness for the location of attachment,and size the VGs accordingly.They need to be just large enough and no larger.
*VGs for the roof may have to be different from those on the sides,depending on the particular vehicle.
*Store-bought VGs aren't going to cut it.
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