|
I have no idea what 'suck eggs' means!!!
O.k, That's helping. It seems like your saying that having a diffuser helps because it allows the faster air of the underbody to mix more easily with the slower freestream.
So if you have a diffuser the velocity in the thinest road to underbody region of the underbody will be higher than for a car where the same road to underbody distance is maintained all the way to the back of the car?
What causes the pressure to be lower at the start of the diffuser, where the body goes from flat to turning upward? I get confused because when thinking about pipe flow, like a venturi tube, as you increase thickness of the pipe the pressure increases, seemingly the oposite to what happends at the start of a diffuser.
|