Post Stall Propeller Behavior at Low Reynolds Numbers
Post Stall Propeller Behavior at Low Reynolds Numbers
复制标题
低雷诺数下失速后螺旋桨的行为
DOI：
10.2514/6.2008-407
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发表时间：
2008
影响因子：
2.4
通讯作者：
M. Selig
中科院分区：
文献类型：
--
作者：
D. Uhlig;M. Selig
螺旋桨和风力涡轮机失速后空气动力学数据有限。在低雷诺数的小螺旋桨中观察了失速后空气动力学。首先，在风洞中获得了一组可变螺距螺旋桨的性能数据（推力、功率和效率）。螺旋桨的直径为6到9.9英寸，能够俯仰到极端的角度。第二详细的几何特征（螺距，弦，翼型）的螺旋桨进行了测量。最后，利用PROPID模型对螺旋桨进行仿真，并对其性能进行预测。通过对比实验结果和计算结果，确定了失速后空气动力学对螺旋桨性能的影响区域。
Limited data exists for propeller and wind turbine post stall aerodynamics. Post stall aerodynamics was observed in small propellers at low Reynolds numbers. First, performance data (thrust, power, and efficiency) for a set variable pitch propellers was acquired in a wind tunnel. The propellers were 6 to 9.9 inches in diameter and were able to pitch to extreme angles. Second detailed geometric characteristics (pitch, chord, airfoil) of the propellers were measured. Finally, PROPID with and without stall delay models was used to simulate the propellers and predict the performance. Comparing the experimental and calculated results identified regions where post stall aerodynamics affected propeller performance.