为降低通海管路出水管末端管径对水动力噪声的影响，对出水管末端管径提出多种扩大方案，并采用数值仿真方法计算了多种管径尺寸下的噪声和流速分布情况。研究结果表明，通海管路出水管末端管径扩大1.1倍时，总声压级达到最小值，减振降噪效果最佳。
In order to reduce the influence of terminal diameter for outlet-water in seawater pipeline on hydrodynamic noise, a variety of amplification schemes were put forward for terminal diameter of outlet-water, the noise and flow velocity were simulated in a variety of diameter dimensions. The results showed that when the terminal diameter for outlet-water in seawater pipeline expands 1.1 times, the OSPLs reach the minimum; it has the best effect of damping vibration and noise.
2019,41(7): 67-70 收稿日期：2018-07-25
DOI：10.3404/j.issn.1672-7649.2019.07.013
分类号：U661.1
基金项目：海军装备部综合隐身配套科研项目
作者简介：潘国雄(1978-),男,硕士,高级工程师,主要从事船舶振动与噪声控制研究
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