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Aerodynamic Response of a Wind Turbine Airfoil to Gurney Flap Deployment

机译：风力涡轮机翼型的空气动力学响应到Gurney Plap部署

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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：考虑了盖因襟翼部署期间平板翼型的瞬态空气动力学。还在广角攻角范围内进行固定的盖齿襟翼和盖齿襟翼高度，以确定Gurney PLAP对平板翼型几何形状的影响。获得了表面压力测量以研究这种翼型的瞬态空气动力学行为，并在输入到Gurney PLAP位置的步骤输入的情况下解释不稳定升力和时刻系数的趋势。这种测试的重要性是它显示出由于瞬时盖尼襟翼部署而产生的快速空气动力学响应是可实现的，并且对风力涡轮机叶片载荷控制的高度响应式空气动力控制能力承诺。该测试的结果可用于开发与Gurney襟翼部署相关的空气动力学时间常数，这些常数可以与采用盖因襟翼设备的不同流量控制方案集成。

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