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首页> 外文会议>AIAA SciTech forum;ASME wind energy symposium >Aerodynamic Response of a Wind Turbine Airfoil to Gurney Flap Deployment
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Aerodynamic Response of a Wind Turbine Airfoil to Gurney Flap Deployment

机译：风力涡轮机翼型对格尼襟翼展开的气动响应

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The transient aerodynamics of a flatback airfoil during Gurney flap deployment is considered. Testing of the fixed Gurney flaps was also performed over a wide angle of attack range and Gurney flap height to charactrize the effect of the Gurney flap on the flatback airfoil geometry. Surface pressure measurements were acquired to study the transient aerodynamic behavior of this airfoil and to explain the trends in unsteady lift and moment coefficients due to an step input to the Gurney flap position. The importance of such a test is that it shows a fast aerodynamic response due to an instantaneous Gurney flap deployment is achievable and promises highly responsive aerodynamic control capabilities for wind turbine blade load control. The results from this test might be used to develop aerodynamic time constants associated with Gurney flap deployment that can be integrated with different flow control schemes that employ Gurney flap devices.
机译：考虑了在格尼襟翼展开过程中平背翼型的瞬态空气动力学特性。还在较大的攻角范围和格尼襟翼高度上进行了固定格尼襟翼的测试，以表征格尼襟翼对平底翼型几何形状的影响。获得表面压力测量值以研究该翼型的瞬态空气动力学行为，并解释由于向格尼襟翼位置输入阶跃而引起的非稳定升力和力矩系数的趋势。此类测试的重要性在于，由于可实现瞬时葛尼襟翼展开，因此显示出快速的空气动力学响应，并有望为风轮机叶片负载控制提供高响应性的空气动力学控制能力。该测试的结果可用于开发与格尼襟翼展开相关的空气动力学时间常数，该时间常数可以与采用格尼襟翼装置的不同流量控制方案集成。

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