| 预测直升机旋翼气动噪声的新方法 |
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| 引用本文： | 王立群,宋文萍,符松.预测直升机旋翼气动噪声的新方法[J].工程力学,2000,17(2):30-35. |
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| 作者姓名： | 王立群 宋文萍 符松 |
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| 作者单位： | [1]清华大学力学系,北京 [2]西北工业大学飞机系,西安 |
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| 摘 要： | 本文详细介绍了Ｋｉｒｃｈｈｏｆｆ方法,并且针对具体计算模型作了相应修改,在求解直升 机旋翼流场的基础上,预测了旅翼在悬停状态下的高速冲击运场噪声,计算结果与理论分析 一致,体现出旋翼ＣＦＤ与Ｋｉｒｃｈｈｏｆｆ方法相结合的良好应用前景。
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| 关 键 词： | 旋翼 气动噪声 Kirchhoff方法 |
NOISE GENERATED BY A HELICOPTER ROTOR |
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| WANG Li-qun, SONG Wen-ping,FU Song.NOISE GENERATED BY A HELICOPTER ROTOR[J].Engineering Mechanics,2000,17(2):30-35. |
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| Authors: | WANG Li-qun SONG Wen-ping FU Song |
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| Abstract: | A combined Euler/Kirchhoff method is presented for predicting high-speed impulsive noise generated by a hovering rotor blade. Although lacking experimental verification. the results are promising. The results show that some benefit can be made by taking thin、sweep and taper blade-tip Shape in reducing the far-field noise. The modification is made. It is shown that the combined Euler/Kirchhoff scheme provides a powerful tool for engineering purposes. |
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| Keywords: | rotor aeroacoustic noise Kirchhoff method |
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