Aerodynamics and Design of Horizontal-Axis Wind Turbines
Martin O.L. Hansen, Technical University of Denmark, Lyngby, Denmark
Abstract
This chapter tries first to explain how the aerodynamic forces on a wind turbine rotor extract power from the wind by slowing down the wind speed and at the same time produce the torque needed to drive an electrical generator. Next is shown in detail how these forces and the extracted power can be computed for a given blade geometry, wind speed, and angular velocity. Such an analysis tool is needed when designing efficient blades by coupling it with a formal optimization algorithm aiming at making a rotor that in its design lifetime will capture as much energy from the wind as possible and thus help ...
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