结构参数对泵喷推进潜艇水力与声学性能的影响

郭荣; 李舟睿; 张人会; 王乾年; 罗鑫

doi:10.13224/j.cnki.jasp.20220935

结构参数对泵喷推进潜艇水力与声学性能的影响

doi: 10.13224/j.cnki.jasp.20220935

郭荣^{1, 2,},
李舟睿¹,
张人会^{1, 2},
王乾年¹,
罗鑫¹

1.
兰州理工大学能源与动力工程学院，兰州 730050
2.
兰州理工大学甘肃省流体机械及系统重点实验室，兰州 730050

基金项目: 国家自然科学基金（52009050）；中央引导地方科技发展资金项目（23ZYQA0320）；兰州理工大学红柳优秀青年人才支持计划项目

详细信息

作者简介:
郭荣（1987-），男，副教授、硕士生导师，博士，主要研究方向为水力机械内部复杂流动及其诱导噪声

中图分类号: V231.9
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- 被引次数: 0
出版历程
- 收稿日期: 2022-12-06
- 网络出版日期: 2025-03-30

Influence of structural parameters on hydrodynamic and acoustic performance of the pump-jet propelled submarine

GUO Rong^{1, 2
,},
LI Zhourui¹,
ZHANG Renhui^{1, 2},
WANG Qiannian¹,
LUO Xin¹

1.
College of Energy and Power Engineering，Lanzhou University of Technology，Lanzhou 730050，China
2.
Gansu Province Key Laboratory of Fluid Machinery and Systems，Lanzhou University of Technology，Lanzhou 730050，China

摘要

摘要:
为研究结构参数对巡航状态下泵喷推进潜艇水力性能和声学性能的影响，采用分离涡模型（DES）进行全流域非定常数值计算，输出流场脉动信息作为声源，运用声学有限元方法（FEM）预测流动噪声。在水槽试验台进行试验研究，采集噪声与推力信息，并对数值计算的结果进行验证。结果表明：较少的叶轮叶片数、导叶叶片数和较小的喷管进出口面积比有利于泵喷内部流动状况改善；泵喷总推力随叶轮叶片数或导叶叶片数的增加而降低、随喷管进出口面积比的增加而上升，敞水效率均随3种结构参数的增加而降低；叶轮叶片数增加引起各类流动噪声均呈现整体上升趋势，而导叶叶片数和喷管进出口面积比增加对不同噪声的影响规律各有不同；结构参数改变时，各类流动噪声的指向性分布规律基本一致。
- 泵喷推进潜艇 /
- 结构参数 /
- 水力性能 /
- 声学性能 /
- 喷流
Abstract:
In order to study the influence of structural parameters on the hydraulic and acoustic performance of a pump-jet propelled submarine in cruising condition, the DES (detached eddy simulation) was used to calculate the unsteady flow in the whole basin. The pressure fluctuation or velocity fluctuation of the flow field was output as the sound source, and the acoustic FEM (finite element method) was used to predict the flow noise. The experimental study was carried out on the circulating water channel of Lanzhou University of Technology. The noise and thrust information were collected by hydrophone and thrust data acquisition system, and the numerical results were verified. The results showed that fewer impeller and guide vane number and less area ratio of nozzle import and export can improve the internal flow condition of pump-jet. The total thrust of pump-jet propulsor decreased with the increase of the number of impeller blades or the number of guide vane blades, but increased with the increase of the area ratio of nozzle import and export. The open water efficiency decreased with the increase of three structural parameters. The increase of impeller blades number caused all kinds of noise to show an overall upward trend, while the increase of different kinds of guide vane number and area ratio of nozzle import and export showed different influence laws on different kinds of noise. When the structural parameters changed, the directivity distribution of various flow noises was basically the same.
- pump-jet propelled submarine /
- structural parameters /
- hydrodynamic performance /
- acoustic performance /
- jet-flow

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图 1 泵喷推进器和潜艇模型

Figure 1. Pump-jet propulsor and submarine model

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图 2 计算域

Figure 2. Computational domain

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图 3 无关性验证

Figure 3. Independence verification

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图 4 泵喷推进器叶轮、导叶和喷管网格示意图

Figure 4. Mesh renderings of impeller, guide vane, and nozzle of pump-jet

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图 5 观测点及观测面

Figure 5. Observation point and observation surface

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图 6 循环水槽试验台

1 计速仪；2 数据收集系统；3 电动机转速控制器；4 推力监测器；5 潜艇；6 泵喷推进器；7 内部水循环水池；8 水下噪声监测装置。

Figure 6. Circulating water channel test-bed

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图 7 数值模拟与试验推力对比图

Figure 7. Comparison of CFD and experiment thrust performance

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图 8 试验与数值计算噪声对比

Figure 8. Noise comparison of experiment and numerical simulation

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图 9 3种不同叶片数的叶轮

Figure 9. Impellers with three different blade numbers

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图 10 不同叶轮叶片数时泵喷推进器内外涡量场和流线

Figure 10. Vorticity field and streamline diagrams of pump-jet propulsor at different impeller blade numbers

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图 11 不同叶轮叶片数时泵喷推进潜艇水力性能变图

Figure 11. Variation diagram of hydrdynamic performance of pump-jet propelled submarine with different impeller blade numbers

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图 12 不同叶轮叶片数时泵喷推进器叶轮与导叶表面压力系数曲线

Figure 12. Pressure coefficient curve of impeller and guide vane of pump jet propulsor with different impeller blade numbers

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图 13 不同叶轮叶片数时4类噪声声压级频响曲线

Figure 13. Sound pressure level frequency response curves of four types of noise with different impeller blade numbers

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图 14 叶频处不同叶轮叶片数的各噪声声压级指向性图

Figure 14. Sound pressure level directivity diagram of various noises at BPF with different impeller blade numbers

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图 15 3种不同叶片数的导叶

Figure 15. Guide vane with three different blade numbers

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图 16 不同导叶叶片数时泵喷推进器内外涡量场和流线分布图

Figure 16. Vorticity field and streamline diagrams of pump-jet propulsor at different guide vane blade numbers

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图 17 不同导叶叶片数时泵喷推进潜艇水动力性能变化图

Figure 17. Variation diagram of hydrdynamic performance of pump-jet propelled submarine with different guide vane blade numbers

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图 18 不同导叶叶片数时泵喷推进器叶轮与导叶表面压力系数曲线

Figure 18. Pressure coefficient curve of impeller and guide vane surface of pump-jet propulsor with different guide vane blade numbers

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图 19 不同导叶叶片数时四类噪声声压级频响曲线

Figure 19. Sound pressure level frequency response curves of four types of noise with different guide vane blade numbers

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图 20 叶频处不同导叶叶片数的各噪声声压级指向性图

Figure 20. Sound pressure level directivity diagram of various noises at BPF with different guide vane blade numbers

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图 21 3种不同进出口面积比的喷管

Figure 21. Nozzle with three different area ratio of import and export

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图 22 不同喷管进出口面积比下泵喷推进器内外涡量场和流线分布图

Figure 22. Vorticity field and streamline diagrams of pump-jet propulsor at different area ratio of nozzle import and export

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图 23 喷管进出口面积比不同时泵喷推进潜艇水动力性能变化图

Figure 23. Variation diagram of hydrdynamic performance of pump-jet propelled submarine with different area ratio of nozzle import and export

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图 24 喷管进出口面积比不同时泵喷推进器叶轮与导叶表面压力系数曲线

Figure 24. Pressure coefficient curve of impeller and guide vane surface of pump-jet with different area ratio of nozzle import and export

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图 25 喷管进出口面积比不同时4类噪声声压级频响曲线

Figure 25. L_p frequency response curves of four types of noise with different area ratio of nozzle import and export

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图 26 叶频处喷管进出口面积比不同时各噪声声压级指向性图

Figure 26. L_p directivity diagram of various noises at BPF with different area ratio of nozzle import and export

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表 1 泵喷推进器结构参数

Table 1. Structural parameters of pump-jet propulsor

参数	数值
叶轮进口直径d₁/mm	83
叶轮出口直径d₂/mm	83
导叶进口直径d₃/mm	83
导叶出口直径d₄/mm	77
叶轮叶片数Z₁/片	4
导叶叶片数Z₂/片	7
喷管进、出口面积比A₀	7.5

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表 2 主要部件y⁺值范围

Table 2. y⁺ range of main components

过流部件	范围
叶轮	0.81～5.98
导叶	0.83～5.97
喷管	0.91～3.97

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