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Old 11-26-2016, 02:41 PM   #6 (permalink)
aerohead
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vents

Quote:
Originally Posted by Taurus View Post
I have been reading and learning more and more about aerodynamics lately, and one thing that I haven't given much thought before is Negative Pressure in the wheel wells.

My 2004 Taurus has ducts in the front bumper that basically blast the front wheel wells with air. This seems like a terrible place to direct air flow. I imagine the wheel wells to be very turbulent and also act like a parachute as air enters into them.

However I also imagine that if I blocked these vents off, the would be an increase in negative pressure in the wheel wells. But smoother air flow.

Which would be the better option, to block or not to block?
Ford may have measured a constant Delta-P between the engine bay and wheelhouse at this location at all driving speeds,and chose it specifically do to this pressure relationship.
Cabin ventilation outlets are designed this way to save pumping energy of an air mover.
Without a complete pressure survey of your Taurus,you're shooting blind.
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