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Influence of Vortex Generators on NREL S807 Airfoil Aerodynamic Characteristics and Wind Turbine Performance

机译：涡流发生器对NREL S807翼型气动特性和风力发电机性能的影响

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The performance of the NREL S807 airfoil is experimentally determined via wind tunnel testing. The tests are conducted at Reynolds numbers of 0.5, 1.0, and 1.5·10~6, with a clean surface, with two levels of leading edge surface roughness, and with surface roughness and large wishbone vortex generators. The results show that the S807 maximum lift coefficient drops with the application of leading edge surface roughness. The wishbone vortex generators are successful in restoring most of the loss in maximum lift coefficient at the cost of increased profile drag at pre-stall angles of attack. The aerodynamic characteristics of the S807 with and without vortex generators are used as the input to the PROP93 and SEACC computer models to simulate the performance of an advanced wind turbine employing vortex generators. The results demonstrate that vortex generators could improve the performance of wind turbines using the NREL airfoils by up to 4%.
机译：NREL S807机翼的性能是通过风洞测试通过实验确定的。试验在雷诺数为0.5、1.0和1.5·10〜6的条件下进行，表面清洁，前缘表面粗糙度达到两个水平，表面粗糙度较大且叉骨涡旋发生器较大。结果表明，随着前缘表面粗糙度的增加，S807的最大升力系数下降。叉骨涡旋发生器成功地恢复了最大升力系数的大部分损失，但代价是在预失速迎角增加轮廓阻力。带有和不带有涡流发生器的S807的空气动力学特性都用作PROP93和SEACC计算机模型的输入，以模拟采用涡流发生器的先进风力涡轮机的性能。结果表明，涡流发生器可将使用NREL机翼的风力涡轮机的性能提高多达4％。

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