Preferring VAWT's for decades found his works 4-5 years ago & revised my designs to counter-rotate on an offset axis free to swing 360-deg so it "self sails" into the glancing angle all the time gaining 10%, not certain how it affects the distance between pairs.
Nice work here.
Preferring VAWT's for decades found his works 4-5 years ago & revised my designs to counter-rotate on an offset axis free to swing 360-deg so it "self sails" into the glancing angle all the time gaining 10%, not certain how it affects the distance between pairs.
One question, power density?
I've got an idea, Dr. Dabiri. It relates to raising the rated operational speed of the HAWT. You could refer to the design I've sent you.