WIND TURBINE BLADE PROVIDED WITH FLOW ALTERING DEVICES
    32.
    发明申请
    WIND TURBINE BLADE PROVIDED WITH FLOW ALTERING DEVICES 有权
    风力涡轮叶片提供流动变换装置

    公开(公告)号:US20120057984A1

    公开(公告)日:2012-03-08

    申请号:US13320946

    申请日:2010-05-18

    Abstract: A blade for a rotor of a wind turbine is divided into a root region closest to the hub and an airfoil region with a lift generating profile furthest away from the hub and a transition region. A base part of the transition region has an axial induction factor, which without flow altering device deviates at least 5% from a target axial induction factor. A number of first flow altering devices are arranged so as to adjust the aerodynamic properties of a longitudinal segment of the transition region to substantially meet the target axial induction factor.

    Abstract translation: 用于风力涡轮机的转子的叶片被分成最靠近轮毂的根部区域和具有离轮毂最远的升力产生轮廓的翼型区域和过渡区域。 过渡区域的基本部分具有轴向感应系数,其没有流动改变装置偏离目标轴向感应系数至少5%。 多个第一流动改变装置被布置成调节过渡区域的纵向段的空气动力特性以基本上满足目标轴向感应系数。

    WIND TURBINE BLADE HAVING A SPOILER WITH EFFECTIVE SEPARATION OF AIRFLOW
    33.
    发明申请
    WIND TURBINE BLADE HAVING A SPOILER WITH EFFECTIVE SEPARATION OF AIRFLOW 有权
    具有有效分离气流的风力涡轮机叶片

    公开(公告)号:US20110250076A1

    公开(公告)日:2011-10-13

    申请号:US13139153

    申请日:2009-10-26

    Abstract: A wind turbine blade with a flow guiding device attached to a profiled contour on a pressure side of the blade is described. The flow guiding device extends along at least a longitudinal part of a transition region of the blade and is arranged so as to generate a separation of airflow along at least a central longitudinal portion of the flow guiding device from the pressure side of the blade at a point between the flow guiding device and a trailing edge of the blade, when the blade is impacted by an incident airflow. The inflow surface, in at least the central longitudinal portion, is formed so that, for each transverse cross-section, a end point tangent to the inflow surface at the end point crosses the profiled contour at a crossing point, where the profiled contour has a profile tangent to the profiled contour, and wherein an angle between the profile tangent and the end point tangent is at least 45 degrees.

    Abstract translation: 描述了具有附接到叶片的压力侧上的轮廓轮廓的流动引导装置的风力涡轮机叶片。 流动引导装置沿着叶片的过渡区域的至少纵向部分延伸,并且布置成沿着叶片的压力侧沿流动引导装置的至少中心纵向部分产生气流分离 当叶片被入射气流冲击时,流动引导装置和叶片的后缘之间的点。 至少中心纵向部分的流入表面被形成为使得对于每个横截面,在端点处与流入表面相切的终点在交叉点处穿过异型轮廓,其中异形轮廓具有 与轮廓轮廓相切的轮廓,并且其中轮廓切线和终点切线之间的角度至少为45度。

    WIND TURBINE BLADE HAVING A FLOW GUIDING DEVICE WITH OPTIMISED HEIGHT
    34.
    发明申请
    WIND TURBINE BLADE HAVING A FLOW GUIDING DEVICE WITH OPTIMISED HEIGHT 有权
    具有优化高度的流动导向装置的风力涡轮机叶片

    公开(公告)号:US20110243753A1

    公开(公告)日:2011-10-06

    申请号:US13139157

    申请日:2009-10-26

    CPC classification number: F03D1/0641 F05B2240/301 Y02E10/721

    Abstract: A wind turbine blade with a flow guiding device attached to a profiled contour on a pressure side of the blade is described. The flow guiding device extends along at least a longitudinal part of a transition region of the blade and is arranged so as to generate a separation of airflow along at least a central longitudinal portion of the flow guiding device from the pressure side of the blade at a point between the flow guiding device and a trailing edge of the blade, when the blade is impacted by an incident airflow. The flow guiding device is arranged at a relative chordal position, seen from the leading edge of the blade, lying in an interval between 40% and 92%. The relative height of the flow guiding device is at least 10% of a maximum thickness of the profiled contour.

    Abstract translation: 描述了具有附接到叶片的压力侧上的轮廓轮廓的流动引导装置的风力涡轮机叶片。 流动引导装置沿着叶片的过渡区域的至少纵向部分延伸,并且布置成沿着叶片的压力侧沿流动引导装置的至少中心纵向部分产生气流分离 当叶片被入射气流冲击时,流动引导装置和叶片的后缘之间的点。 流动引导装置布置在相对的弦位置,从叶片的前缘看,以40%至92%之间的间隔。 导流装置的相对高度至少是成型轮廓最大厚度的10%。

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