Quote:
Originally Posted by MadisonMPG
MetroMPG, can you post the top right picture (the original) that is in post 1?
|
There are a couple of top views
in this post.
Quote:
Originally Posted by Frank Lee
I think it's safe to say some of these angles we take for granted can be cheated somewhat (made steeper) if other elements are in place. As evidence I offer the way the upper rear of the EV1 sits under the aero template. With the good Cd it has, I'd think the flow back there is good.
|
I'd be inclined to agree. 0.195 (or 0.21 or whatever GM wants to claim now) is too good to have separation there.
However, just today Phil mentioned that he thinks there
is separation on the rear glass:
Quote:
Originally Posted by aerohead 
Where the wind tunnel smoke trace over the backlite of the stock EV1 clearly separates
|
I'd bet against separation though. I wish we had the ear of someone who worked on the project. (FYI we have screen grabs of the
EV1 smoke test in the wind tunnel here.)
Quote:
Originally Posted by NeilBlanchard
I think if we consider the 3D flow, then the angles can be steeper than the 2D template. If the air closes in from the sides, it may be filling in where the flow down from the top cannot?
|
I would have thought so as well, but the template is supposed to apply in 3D. It's half of a body of rotation.