| 大侧斜螺旋桨负载噪声的边界元数值声学方法频域内计算分析 |
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| 引用本文： | 杨琼方,王永生,曾文德,张明敏.大侧斜螺旋桨负载噪声的边界元数值声学方法频域内计算分析[J].兵工学报,2011,32(9):1118-1125. |
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| 作者姓名： | 杨琼方 王永生 曾文德 张明敏 |
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| 作者单位： | （1.海军工程大学 船舶与动力学院, 湖北 武汉 430033； 2.海军工程大学 电子工程学院, 湖北 武汉 430033） |
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| 基金项目： | 国家自然科学基金资助项目(51009144) |
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| 摘 要： | 为探索艇尾桨无空化水下辅射噪声的数值预报方法,采用流场大涡模拟(LES)和声场边界元数值声学的弱耦合方法在频域内对艇尾标称伴流条件下的大侧斜螺旋桨水下负载噪声进行了预报.耦合方法的可信性由计算得到的DTRC4119无侧斜螺旋桨球面空间声压分布和特征测点处声压频谱级曲线与文献5 -6]计算值的比较给予了验证.LES计算...
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| 关 键 词： | 船舶、舰船工程 大侧斜螺旋桨 辐射噪声 边界元数值声学方法 积分法 频域 |
Calculation of Highly-skewed Propeller's Load Noise Using BEM Numerical Acoustics Method in Frequency Domain |
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| YANG Qiong-fang,WANG Yong-sheng,ZENG Wen-de,ZHANG Ming-min.Calculation of Highly-skewed Propeller's Load Noise Using BEM Numerical Acoustics Method in Frequency Domain[J].Acta Armamentarii,2011,32(9):1118-1125. |
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| Authors: | YANG Qiong-fang WANG Yong-sheng ZENG Wen-de ZHANG Ming-min |
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| Affiliation: | (1.College of Ship and Power Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China;2.College of Electronic Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China) |
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| Abstract: | For numerical prediction of non-cavitation underwater radiated noise of propeller behind submarine,a highly-skewed propeller's underwater load noise in nominal wake flow is predicted by using large eddy simulation(LES) and boundary element numerical acoustic weak-coupling method in frequency domain.This coupling method is verified by comparing the calculated sound pressure directivity characteristics on the 3D spherical surface and downstream axial measured point's broadband sound pressure spectrum of DTRC4... |
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| Keywords: | ship engineering highly-skewed propeller radiated noise boundary element numerical acoustics method integral method frequency domain |
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