Quote:
Originally Posted by cowmeat
Awesome, thanks for the link, I found some good pics in it to kind of use for a template.
Here's where I'm confused about as far as moving the mirror way out to the side (see pic below), and what I was asking in the first place. It seems like there's an eddy right created at the base of the pillar, so tucking a small mirror in right there seemed to me to be the best idea for placement.
Or is that eddy created from the mirror and the mirror stalk?
Thanks for the help!
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That is an A-pillar Vortex,and it's created by the discrepancy in pressures and velocities between the A-pillar area itself (very fast-moving low-pressure air) and slower/higher-pressure air on the side of the car.
The high-pressure side flow bleeds into the low-pressure A-pillar flow,attempting to reach equilibrium pressure, and shearing forces within the viscous air create the rolled-up cyclonic flow exactly as warm moist Gulf air rising off a Colorado plain meets fast-moving air in the jet-stream above creating the meso-cyclone super-storms which will set down later as tornadoes in Kansas.
Again,the very fast A-pillar flow is the culprit.You don't want anything near it.