View Single Post
Old 08-31-2016, 06:02 PM   #51 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 12,611
Thanks: 20,273
Thanked 6,282 Times in 3,888 Posts
flour

Quote:
Originally Posted by 19bonestock88 View Post
I figured I would restart this discussion, a member on here supplied me with some free individual vortex generators, and gave me a good idea to test the airflow without needing a chase car and photographer... He suggested to use flour sprinkled over the roof of the car and drive at low speed; there would be indicated attached flow where the flour was swept off, and that would show the point of separation, indicating to me where to place the vortex generators, giving the best possible result for the effort...
In addition to flour,NASA successfully used diatomacious earth for flow visualization.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote