TRAILING-EDGE ADD-ON

The invention describes a wind turbine rotor blade add-on (1) comprising a plurality of serration teeth (10) arranged to extend outward from the trailing edge (20TE) of the rotor blade (20), wherein a serration tooth (10) has an elongate shape defined by a base (10B) and two at least partially curve...

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Bibliographische Detailangaben
Hauptverfasser:	ASHEIM, Michael J, OERLEMANS, Stefan, FERRET GASCH, Oriol
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The invention describes a wind turbine rotor blade add-on (1) comprising a plurality of serration teeth (10) arranged to extend outward from the trailing edge (20TE) of the rotor blade (20), wherein a serration tooth (10) has an elongate shape defined by a base (10B) and two at least partially curved side edges (10S) converging at a tip (10T), and wherein the length of a serration tooth (10) from base (10B) to tip (10T) exceeds the width of the serration tooth (10) at its base (10B) by a factor of at least 6; a side edge (10S) of the serration tooth (10) includes a convex curved portion; and the closest distance (1G) between adjacent serration teeth (10) is at most 1 mm. The invention further describes a A wind turbine rotor blade (20) comprising a number of such add-ons (1) mounted to the trailing edge (20TE) of the airfoil portion of the rotor blade (20).