| 二维增升装置前缘缝翼的远场噪声分析 |
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| 引用本文： | 刘志仁,王福新,宋文滨,李亚林.二维增升装置前缘缝翼的远场噪声分析[J].空气动力学学报,2012,30(3):388-393. |
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| 作者姓名： | 刘志仁 王福新 宋文滨 李亚林 |
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| 作者单位： | 1. 上海交通大学航空航天学院,上海,200240
2. 中国商用飞机有限责任公司上海飞机设计研究院,上海,200235 |
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| 基金项目： | 中国商用飞机有限责任公司上海飞机设计研究院提供专项资助 |
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| 摘 要： | 以计算流体力学软件FLUENT工具,二维增升装置模型L1T2为基准,采用LES模型和Ffcows Williams-Hall积分方法,计算二维增升装置前缘缝翼的远场噪声。通过计算24组不同缝道参数的二维增升装置的缝翼噪声和最大升力系数,分析了气动性能与噪声强度之间的关系,并采用建立响应面的方法对缝道参数进行了优化,使原增升装置模型的噪声强度得到了降低。结果表明:当缝道参数大小适中时噪声总声压级较小,反之噪声总声压级显著增大;当缝道宽度减小而重叠量增加时,噪声总声压级持续减小。适当的缝道参数组合是能够使所设计的增升装置较好地兼顾气动性能和噪声强度要求的。
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| 关 键 词： | 增升装置 缝翼 缝道参数 气动噪声 |
Far-field aeroacoustic analysis for slat of a two-dimensional high-lift configuration |
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| LIU Zhi-ren
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WANG Fu-xin
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SONG Wen-bin
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LI Ya-lin.Far-field aeroacoustic analysis for slat of a two-dimensional high-lift configuration[J].Acta Aerodynamica Sinica,2012,30(3):388-393. |
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| Authors: | LIU Zhi-ren WANG Fu-xin SONG Wen-bin LI Ya-lin |
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| Institution: | 1.School of Aeronautics and Astronautics,Shanghai Jiaotong University,Shanghai 200240,China; 2.Commercial Aircraft Corporation of China,Ltd.,Shanghai Aircraft Design and Research Institute,Shanghai 200235,China) |
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| Abstract: | The far-field noise of two dimensional multi-element high lift device L1T2 slat model was calculated using commercial CFD software FLUENT.LES model was used in flow field analysis to provide noise source data,while the FW-H method was used to calculate the far-field noise levels.To study the effects of gap and overlap on both maximum lift coefficient and noise levels,a total of 24 different combinations of gap and overlap were analyzed,and two response surface models were built from the results.The response surface models indicate that it is possible to find reasonable combinations of gap and overlap to achieve a balance between aerodynamic performance and noise characteristics. |
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| Keywords: | high lift device slat gap and overlap aeroacoustics |
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