| 由计算的三元非定常压力数据来预估旋翼辐射的桨涡干扰噪声 |
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| 引用本文： | 尹坚平,胡章伟.由计算的三元非定常压力数据来预估旋翼辐射的桨涡干扰噪声[J].航空学报,1996,17(6):86-90. |
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| 作者姓名： | 尹坚平 胡章伟 |
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| 作者单位： | 南京航空航天大学空气动力学系 |
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| 摘 要： | 由三维自由尾迹非定常板元方法计算的三元非定常气动力出发，计算直升机旋翼桨涡干扰噪声。用飞行实验和风洞实验数据分别对计算的旋翼在前飞和前飞下滑状态下的声压时间历程以及其它计算结果进行考核，某些结果还与著名的ＷＯＰＷＯＰ程序计算的结果进行了比较。理论计算与飞行实验和风洞实验结果吻合较好
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| 关 键 词： | 直升机旋翼 桨涡干扰 噪声 非定常压力 尾迹 |
PREDICTION OF ROTOR BLADE VORTEX INTERACTION NOISE USING 3 D UNSTEADY SURFACE PRESSURE |
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| Yin Jianping,Hu Zhangwei.PREDICTION OF ROTOR BLADE VORTEX INTERACTION NOISE USING 3 D UNSTEADY SURFACE PRESSURE[J].Acta Aeronautica et Astronautica Sinica,1996,17(6):86-90. |
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| Authors: | Yin Jianping Hu Zhangwei |
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| Institution: | Nanjing University of Aeronautics and Astronautics, Nanjing,210016 |
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| Abstract: | Surface pressure data from 3 D unsteady free wake panel method has been used to predict the helicopter rotor blade vortex (BVI) interaction noise. Acoustic pressure time history and other predictions are validated with flight test and wind tunnel data in forward and forward descent flight and with famous WOPWOP results. Good agreement of the prediction with flight and wind tunnel test results has been obtained. |
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| Keywords: | helicopter rotors blade vortex interaction noise unsteady pressure wakes |
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