Marcos Buenijo wrote: the blades interact with the air molecules in two important ways. (1) some air molecules transfer their momentum to the blades causing them to generate a torque on the turbine shaft, and (2) some air molecules do not. Of those that do (1), these air molecules slow down and see their paths diverted. Of those that do (2), these air molecules do not slow down, but they do see their paths diverted. The goal is to maximize the number of air molecules that do (1), and while minimizing the number of air molecules that do (2). .
Thank you Marcos !!
I cant disagree !
Maybe Iam clutching at straws but I had this hunch that both air molecules (1) and (2) have also been converted from a lamina flow to a vortex flow..albeit an imperfect one. Under such circumstances the energy lost from air molecule (1) might be less than thought and secondly both air molecules..(1) and (2)..albeit now traveling at different velocities are now more inline with air (and waters) natural tendency....cyclonic.... that of a vortex..thus picking UP velocity and hence energy. As I said earlier..many MORE Vectors are thus introduced..that is to say rotational..translation, centripetal, centrifugal and transverse. (I made that lot up).
Reminding ourselves of some original statements I have now found out that Nasa has a glider
..The falco..capable of 13,000 mph. IF that was to deploy a tiny wind turbine of say 0.5m dia....power output would be 46234244187 Watts = 46234 mega watts or 46 Terra watts. Would love somebody to check that. Wouldnt it be a bummer if I was a fact of 100 out and its only 0.46 Terra watts..lol..still not bad for suitcase sided wind turbine..just need the glider eh ? No doubt 46 Terra Watts would be enough to re launch the glider ? Just saying.
Just thinking aloud eh ! and again Thank you everyone
ps. the stubby wings of bees and other insects lift far more weight than can be explained using conventional steady-state aerodynamics principles.Weis-Fogh, a Danish zoologist at the University of Cambridge, used high-speed photography to analyze the exact wing motions of hovering insects and compare them to the insects’ morphological features. From this, he formulated a general theory of insect flight, which included what he called the “clap-and-fling effect.” When insect wings clap together and then peel apart between the up and down strokes, the motion flings air away and creates a low-pressure pocket. Air then rushes back into the pocket, forming a swirling vortex.
This vortex creates the force necessary to lift the insect between
wing flaps. Similar vortices might be generated by the angle and rotation of the wings
, Weis-Fogh posited, providing additional lift.