Explain lift & drag wind energy conversion principle.

Explain lift & drag wind energy conversion principle.
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Two primary aerodynamic forces work in wind turbine rotors are:-

1) Lift which acts perpendicular to the direction of wind flow and

2) Drag acts parallel to wind flow.

To increase wind turbine blade efficiency, rotor blades need to have an aerodynamics profile to create lift and rotate the turbine. Curved aero foil type blade offer better performance and higher rotational speed and make them ideal for power generation.

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