|
Something to keep in mind everyone, the volume of air affected by a vehicle moving through it goes out to 6 feet or more, this is the sand box we're in. It isn't a 1/4" layer stuck to the skin of our cars/trucks. Skin friction is not the enemy here, it is the bluff body and associated pressure drag it creates. Airplanes may be affected by these zig zag things because they play in a different world where skin drag and subtle pressure changes over and already insanely tuned shape will have an effect.
None of you are flying through free air, we hope, and if you are, it is about to end badly for you, and how much drag you're generating is probably the last thing on your mind, ever, if you're indeed thinking about it at that point.
None of you are driving an insanely tuned aero dynamic vehicle (I've yet to hear of anyone driving a VW XL1 here yet)
None of you are cruising at speeds of 120MPH or more.
So quit trying to say "If it works on an airplane it must work on a car too."
It doesn't.
|