基于计算流体软件，采用大涡模拟方法计算了给定来流速度条件下表面开孔的非定常流场，分析了流场的非定常流频谱特性，采用边界元方法模拟了噪声源特征，对各种流动噪声控制措施进行了对比分析。计算结果表明，开孔形式的改变会直接影响流噪声的水平，设计结果可以为舰船流水孔的降噪设计提供参考。
In order to study the characteristics of hydrodynamic noise of water hole, the flow field round the three-dimensional water hole model was numerical simulated based on the large eddy simulation. Then the flow noise was calculated by the boundary element method and the control measures of flow noise was analyzed. It is shown that the change of water hole parameters would directly affect the level of flow noise, which could provide reference for noise reduction design of water hole on ship.
2017,39(9): 35-39,44 收稿日期：2016-10-10
DOI：10.3404/j.issn.1672-7649.2017.09.007
分类号：TN911
作者简介：李生(1979-),男,工程师,研究方向为减振降噪
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