View Single Post
Old 10-21-2020, 01:08 PM   #3597 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 15,883
Thanks: 23,957
Thanked 7,219 Times in 4,646 Posts
Gurney flap

Quote:
Originally Posted by AeroMcAeroFace View Post
I wouldn't fancy driving that delivery vehicle over a windy bridge, you would hope it has a low centre of mass so it doesn't tip over.

That VW has a gurney flap on the diffuser, is that for diffuser function or air flowing over the top of the diffuser? Has anyone seen any evidence for this or heard of it before?
I'd like the guy to expand on his thesis.
The original 1971 Gurney flap was intended for undisturbed, upper body flow.
Embedded within the wake, as it's shown, perhaps it's isolating the diffuser effect from the wake turbulence enough to marginally amplify the downforce. A direct explanation is always better than a guess. Especially mine.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote