Rotor blade, wind turbine, serration angle, environmental parameters

A method for optimizing a rotor blade having a rotor blade body with a leading edge and a trailing edge that extends in a longitudinal direction of the rotor blade between a root end and a tip end, wherein a cross section of the rotor blade between the leading edge and the trailing edge defines a profile chord, the method comprising:

• mounting a plurality of serrations in a region of the trailing edge of the rotor blade, wherein each serration of the plurality of serrations has a base line, which is arranged at the trailing edge, and an end point, located furthest away from the base line, which together span a plane of the serration,
• wherein a serration of the plurality of serrations is a tooth of a trailing edge ridge of the rotor blade,
• wherein an angle between the plane of at least one serration of the plurality of serrations and the profile chord is formed dependent on at least one environmental parameter at an installation location of the wind turbine, and
• wherein the angle between the plane of the at least one serration of the plurality of serrations and the profile chord is increased in the direction of a pressure side of the rotor blade as the air density decreases thereby adjusting an induction factor distribution of the rotor blade according to deviations of the at least one environmental parameter at the installation location from at least one design parameter of the rotor blade.