Quote:
Originally Posted by apgrok1
So why can't you put steps on the back window? I brought up this topic before and was shot down due to flow separation. It looks to me that anything that has more than a 12 degree slope should have a step or tail.
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You can do steps,as Ford/Merkur did this with the Xr4Ti.They got a patent on it.The "steps" need to be pretty close to the glass or circulation will kind of destroy the whole effect,and the trailing edges of the steps need to approximate the form of the ideal roofline.Basically,your using captured vortices to fill the void behind the backlight and the air skips over the vortices as if they were solid.They don't work as good as the totally re-designed roofline,however they're way out ahead of nothing.