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The airline industry already adopted a film of this nature as I also already mentioned. The designs are the same but the airline industry did it back in 2000.
The purported max on decreased drag was 10% though.
Lately, I've had my fill of "phenomenon" events that offer answers without any decipherable science behind them. Particularly ones that have already been explained but are not useful in vehicles.
It's not really about zero flow at the surface because my sheet metal doesn't flow at all. Its about a continuously, infinitely variable surface that can respond to oscillations in the fluid and either expand into low pressures and pull the surface(the trapped water which will provide a df of force on the sheet metal) or compress away from high pressures to avoid drag. Your sheet metal, FG, CF or whatever will just be pulled on creating a tiny force that increases drag instead of compressing or expanding(only microns) to "evade" that increased pressure.
Unless its quantum physics or something of the magnitude of 50% of the universe we can explain most events if not in words and elegant equations then in extremely complicated mathematical formulae.
A CVT takes advantage of the same idea. If your transmission is static you can't decide that the tractor trailer is providing a very friendly FE spot(yes its still FE friendly 2 seconds behind him) and gear appropriately for max efficiency at that speed. You are stuck. CVT slides its cone outward a little so your gearing gets you taller and taller until the engine is producing just enough power to maintain speed at the lowest possible rpm and you didn't have to leave the FE sweet spot behind the semi to get into that sweet spot rpm.
The fluid surface does this. Low pressure sure I'll expand into it to create larger surface area towards the low pressure and pull with a tiny amount of force. High pressure I'll compress and cause less force to be imparted into the sheet.
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