Quote:
Originally Posted by Otto
I've wondered if such phenom could be used to propel an aircraft.
I also wonder if instead of a hollow ring foil, linear airfoils with air ejection could be used for spoilers and diffusers on the rear of cars, to fill and fair the turbulence behind the car, reducing drag.
Thoughts?
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*I think the high-bypass turbofan uses less power (fuel) so they've settled on that for now.
*For cars,I think Georgia Tech is still trying.So far the 'pump' uses more energy than is saved by the blown/suctioned modifications.
The Japanese have a STOL aircraft which uses slot technology.It requires a 5th jet turbine engine to make the wings work.
