| 几何和气动参数对多孔板波涡相互作用影响的研究 |
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| 引用本文： | 唐凌云,王同庆,孙晓峰.几何和气动参数对多孔板波涡相互作用影响的研究[J].航空动力学报,1998,13(3):250-254,344. |
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| 作者姓名： | 唐凌云 王同庆 孙晓峰 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 本文对以涡声相互作用为基础的通气的多孔板共振腔结构的声学性质进行了一些实验研究和分析。着重于声衬的孔径、腔深、孔板厚度对声衬性能的影响。对实验的结果进行了一些分析，给出了厚板通气声衬声抗的一种算法。对吹气与吸气情况下声衬的性质进行了对比。
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| 关 键 词： | 几何 气动力 消声 |
| 收稿时间： | 1997/10/1 0:00:00 |
| 修稿时间： | 1/1/1997 12:00:00 AM |
EFFECTS OF GEOMETRIC AND AERODYNAMIC PARAMETERS ON INTERACTION OF WAVES AND VORTEX ON PERFORATED PLATE |
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| Tang Lingyun,Wang Tongqing and Sun Xiaofeng.EFFECTS OF GEOMETRIC AND AERODYNAMIC PARAMETERS ON INTERACTION OF WAVES AND VORTEX ON PERFORATED PLATE[J].Journal of Aerospace Power,1998,13(3):250-254,344. |
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| Authors: | Tang Lingyun Wang Tongqing and Sun Xiaofeng |
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| Affiliation: | 4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083;4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083 |
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| Abstract: | An experimental investigation has been carried out on a kind of perforated liner with a bias flow through the apertures,according to Howe's vortex sound theory.The attention was focused on the effects of the aperture size,the cavity depth and the perforated plate thickness on the impedance of the liner.The algorithm of the reactance is modified for the liner with thick perforated plate,based on the analysis of experimental results.The perforated liners with sucking and blowing bias flow are compared and the same conclusions are drawn out. |
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| Keywords: | Geometry Aerodynamic forces Sound reduction |
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