Wednesday, April 1, 2015

newtonian mechanics - How is the kinetic energy of the wind transferred onto a lift based wind turbine?


The rotor blades of a lift based wind turbine are shaped like airfoils, so the wind flowing around them creates a lift force which in turn moves them around. From a thermodynamic viewpoint and like answered in this question kinetic energy is extracted from the wind during this.


But what goes on from a mechanical perspective? How exactly is the kinetic energy of air particles transferred onto the rotor blades via lift? None of the sites I read gave an elaboration on the how.




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