Quote:
Originally Posted by freebeard
The obtuse corners at the roof and rear fender are most likely to generate a vortex (mismatched airspeeds on the top and sides). That's where the help is needed most.
Are they over unity?
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I would say yes and no:
I THINK the power required to persuade some air to change the direction it was headed in some and stay laminar is less than the power lost to drag/turbulent flow.
That's why there's so much research in this area.
I NB that the studies seem to be using AC DBD rather than pulsed, unidirectional DC.
No self tuning resonant circuitry is mentioned so think the numbers could actually be better.
"AI Overview [Resonant Circuit]
A tuned resonant circuit, also known as a parallel resonant circuit or tank circuit, can maximize power by efficiently transferring energy between its inductor and capacitor [the DBD in this case]:
Resonance
When a tuned circuit operates at its resonant frequency, the current is minimized, the impedance is maximized, and the voltage is maximized. This allows the circuit to absorb and store energy from an external source very efficiently.
Energy transfer
The tuned circuit's action is similar to a pendulum swinging back and forth, or water sloshing back and forth in a tank. The energy oscillates back and forth between the capacitor and the inductor until internal resistance causes the oscillations to die out.
Applications
Tuned resonant circuits are used in many fields, including wireless communication, filtering, and sensor technology. They are also commonly used in communications equipment to select a specific range of frequencies"