View Single Post
Old 11-10-2021, 02:33 PM   #3877 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,267
Thanks: 24,392
Thanked 7,360 Times in 4,760 Posts
edge radii

*From SAE Paper 860212, FIAT found, that for a test model very similar to the 1st-gen Golf / Rabbit, that airflow attachment saturated with a 40mm body edge radius.
* Starting with all hard edges, and going to all upper body edge softening, the drag dropped from Cd 0.4858, to Cd 0.313, a 35.5% delta Cd.
* Also, between a squareback, notchback, and fastback, the fastback body type was the most sensitive to tumblehome angle, which varied by 3.53% delta-Cd, between zero-and 35-degrees.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote