View Single Post
Old 09-23-2020, 07:21 PM   #33 (permalink)
aerohead
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,314
Thanks: 24,440
Thanked 7,386 Times in 4,783 Posts
streamlines

Quote:
Originally Posted by JulianEdgar View Post
All correct!



Incorrect - as about a million streamline pics show. Here's one:



Note the airflow wrapping around those upper curves. Note how the streamlines get closer together. Note how this indicates higher airflow speed and lower pressure.

How you can seamlessly segue from correct material to absolute rubbish is beyond me.
You're looking at the wrong part of the car!
At the rear, the streamlines are diverging, velocity dropping, pressure rising.
That high pressure is associated with the high base pressure/ low pressure drag, low total drag, no vorticity. Cd 0.19.
You can't see the forest for the trees!
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote