| 基于Kirchhoff方法的水下自由湍射流场噪声预报 |
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| 引用本文： | 王春旭,张涛,侯国祥,朱海飞.基于Kirchhoff方法的水下自由湍射流场噪声预报[J].船舶力学,2010,14(3):305-313. |
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| 作者姓名： | 王春旭 张涛 侯国祥 朱海飞 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院,武汉,430074;安世亚太武汉分公司,武汉,430071 |
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| 摘 要： | 该文旨在研究类似的水下自由射流场噪声机理和预报方法。构造了Kirchhoff理论和CFD方法相结合的算法;详细推导了Kirchhoff方法噪声预报的原理;讨论其适用性,并引入了非线性修正方法。用大涡模拟法对水下自由射流场进行数值模拟,以此作为近场声源;随后,运用所推导的Kirchhoff方法对控制面外噪声场进行预估,并分析了自由射流场声辐射机理。
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| 关 键 词： | Kirchhoff方法 水下自由射流场 噪声预报 喷注噪声 |
Noise Prediction of Submerged Free Jet Based on Kirchhoff Formulation |
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| WANG Chun-xu,ZHANG Tao,HOU Guo-xiang,ZHU Hai-fei.Noise Prediction of Submerged Free Jet Based on Kirchhoff Formulation[J].Journal of Ship Mechanics,2010,14(3):305-313. |
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| Authors: | WANG Chun-xu ZHANG Tao HOU Guo-xiang ZHU Hai-fei |
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| Institution: | 1 College of Naval Architecture and Ocean Engineering;Huazhong University of Science and Technology;Wuhan 430074;China;2 Wuhan Branch;Pera China;Wuhan 430071;China |
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| Abstract: | A theoretical investigation was done on the subjects of noise mechanism and forecasting methodology of submerged free jet such as the flow-field induced by waterjet propulsion.An algorithm was proposed to combine the Kirchhoff formulation and CFD approach.The noise prediction mechanism and applicability using Kirchhoff formulation were deduced and explained in detail.Then a nonlinear influence modification was introduced into this approach.As an example,a numerical simulation of the submerged free jet flow ... |
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| Keywords: | Kirchhoff formulation submerged free jet noise prediction jet noise |
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