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    Wind turbine blade with longitudinally extending flow guiding device having a plate-shaped element
    1.
    发明授权
    Wind turbine blade with longitudinally extending flow guiding device having a plate-shaped element 审中-公开

    公开(公告)号：EP2343450B1

    公开(公告)日：2018-12-26

    申请号：EP09172592.9

    申请日：2009-10-08

    申请人： LM Wind Power A/S

    发明人： Fuglsang, Peter ,  Bove, Stefano ,  Subrahmanyam, V.V. ,  Grabau, Peter ,  Lund, Brian ,  Jensen, Lars E. ,  Radhakrishnan, Sreeram Kottumuklu

    IPC分类号： F03D1/06

    CPC分类号： F03D1/0641 ,  F05B2240/121 ,  F05B2240/301 ,  F05B2260/30 ,  Y02E10/721

    摘要： A wind turbine blade (10) for a rotor of a wind turbine (2) having a substantially horizontal rotor shaft, said rotor comprising a hub (8), from which the blade (10) extends substantially in a radial direction when mounted to the hub (8), the blade having a longitudinal direction (r) with a tip end (14) and a root end (16) and a transverse direction, is disclosed. The blade further comprises: a profiled contour (40, 42, 50) including a pressure side and a suction side, as well as a leading edge (18) and a trailing edge (20) with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The wind turbine blade is provided with a longitudinally extending flow guiding device (70, 170) attached to the profiled contour. The flow guiding device comprises: a base (90, 190) having a first longitudinal end (91, 191) nearest the root end (16) and a second longitudinal end (92, 192) nearest the tip end (14), a first side (93, 193) nearest the leading edge (18) and a second side (94, 194) nearest the trailing edge (20), as well as a first surface (95, 195) and a second surface (96, 196), the first surface of the base being attached to the profiled contour, and the second surface facing away from the profiled contour. A longitudinally extending substantially plate-shaped element (97, 197) protrudes from the second surface (96, 196) of the base (90, 190).