Quote:
Originally Posted by liquidshadowfox
Does the front grille not being smooth matter at all? Or is that minimal drag that it's not worth it? So what about putting sharp edges on the sides towards the back to disconnect the air from the side of the car?
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Smoothing (and blocking) the grill should help a little.
Sharp edges might help if done correctly.
Quote:
Originally Posted by liquidshadowfox
Shouldn't the air curtains this car have help?
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Of course! That's probably why they're there.
But at any rate, most anything you do will be only a slight improvement (or possibly an unimprovement), maybe a percent or two. The biggest fish to catch in aero is the rear end drag.
Most aerodynamic (or hydrodynamic) objects, vehicles and animals have a long tapered rear end (planes, birds, fish, submarines, etc.).
You can have a sharper taper if you have a way of keeping the air flowing along it without it breaking away. This can be done with vortex generators (or golf ball holes, same thing only inverse.)