Standard concept of wind generator is based on this reel: https://www.facebook.com/reel/920365950032185 Looks like:

Seeing moved energy from vent to vent. The radius of vents is similar. Now look at curvature next to the turbine upper and look at what blue line goes to if you see green line. This is in fact explanation of Bernoully equation, where we have maximised pressure in thinner parts of tube. And this concept is really used in turbines. That is why they can reach effectivity bigger than 90% In other words: derivation is max in peaks. ^^^

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