WIND TURBINE ROTOR BLADE WITH PLURALITY OF SERRATIONS AT THE ROTOR BLADE TRAILING EDGE

摘要

A wind turbine rotor blade having a rotor blade tip (210), rotor blade root(209), suctionside (200b), pressure side (200c), rotor blade length (L), profile depth(200d) and pitchaxis of rotation (200a). The profile depth decreases along the rotor bladelength from therotor blade root to the rotor blade tip. The trailing edge (201) has adelimiting line whichreplicates the trailing edge's contour, and multiple serrations to improveflow behaviour atthe trailing edge. The serrations respectively have a serration tip, twoserration edges andan angle bisector. The serration edges are provided non-parallel to adirection of incidentflow perpendicular to the pitch axis of rotation (200a). The serration edgesare non-perpendicularto a tangent to the trailing edge delimiting line. The trailing edgedelimitingline has a plurality of portions, at least one of which extends non-parallelto the pitch axisof rotation.