Quote:
Originally Posted by aerohead
The 'bubble' travels along with the vehicle.It imparts no pressure.
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You'll have to explain that because I don't see how it's possible.
Air is flowing around the stagnant bubble, applying force to it, and so the bubble itself is high pressure. How can it impart no pressure? You're saying you get something for nothing.
The whole car is surrounded by a boundary layer so does that mean there's no drag? The body of the vehicle is traveling with it. Does that mean the body imparts no force to the uniframe?
Are you familiar with the pitot tube? It's the device that aircraft use to measure airspeed. Airflow increases the pressure inside the tube, the higher the speed the higher the pressure. The air inside the pitot tube is a "bubble" moving along with the plane, and it imparts pressure, otherwise the device wouldn't work.