Quote:
Originally Posted by freebeard
Ya think?
I guess what I'm thinking about is vs a flat transom. Maybe curved branches like veins in the flat bottom (something like what you see under race cars) that would wrangle the turbulent air as it exits. The plate becomes an edge.
If it generates down-force to boot, no problem. The interesting question is: What would it really do?
What's really going on under there? Sound waves bouncing back and forth between the road and the car?
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The only turbulence will be due to the tires and that can be fixed with fairings.
A flat bottom and gentle diffuser is all that's required for low drag.
If you see chines down there,then the diffuser is too steep and they're attempting to control transverse contamination of the downforce (low base pressure telegraphed forward under the tail).