Quote:
Originally Posted by freebeard
Like that then. Technically, not speed holes but a semipermeable membrane.
One hinge in the middle of a split flap? |
Ah, the way I understand things that would be heinously bad aero for the front of the car. Holes like that would not only increase pressure (which we don't want) but also create turbulence behind it (which we also don't want).
The way to reduce drag on the front is to minimize the area that high pressure forces push the car back. In an ideal world, the outlet of the radiator is perfectly matched to the inlet (in pressure, size, etc.) so that minimal pressure buildup occurs at the tip to begin with.
I'll settle for just reducing the area that the high pressure acts over. The maximum pushback area in the 4.0 nose cone design is 24"x3", but I want to reduce that even more to the bare minimum. Hence the hinges to reduce the inlet, but in an aerodynamic fashion. If I cover it with a flat flap, then I'm still getting high pressure buildup in the whole area.
We could avoid that by having a completely curved nose in the z axis (looking down on the ground), but I don't know if I can engineer and construct that kind of inlet. I'm barely able to make a flat, rectangular inlet work out.
