Yes that's clear, but if you had watched this video that "WhoisAlanGreenspan?" linked to, you would have seen that this professor also showed the effect of air blowing against a static rotor just as “The CoFlow Jet cylinders developed by Zha..."
If you also think a little you would see that Professor Zha was inspired by the studies of the Bernoullis, Magnus, Flettner and all of the others in the interim up until Professor Zha's worked out his new system. If you read the text at the OP, you see that Professor Zha used the Flettner rotors to explain his new system.
Isaac Newton's most famous statement was, “If I have seen further it is by standing on the shoulders of Giants”.
“Yes that’s clear, but if you had watched this video that “WhoisAlanGreenspan?” linked to, you would have seen that this professor also showed the effect of air blowing against a static rotor just as “The CoFlow Jet cylinders developed by Zha...””
Nope. When he blew on the rotor evenly as a wind blows on a CoFlo there was NO effect, i.e., no pressure difference.