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论文:2015,Vol:33,Issue(1):141-146 |
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引用本文： |
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黄桥高, 潘光. 水下航行器流噪声特性水洞试验研究[J]. 西北工业大学学报 |
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Huang Qiaogao, Pan Guang. Water-Tunnel Experiment about Flow-Noise Characteristic of Underwater Vehicle[J]. Northwestern polytechnical university |
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| 水下航行器流噪声特性水洞试验研究 |
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| 黄桥高, 潘光 |
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| 西北工业大学航海学院, 陕西西安 710072 |
| 摘要: |
| 在高速水洞中进行了水下航行器流噪声的试验研究,测量了不同头部线型、不同来流速度、不同测试点位置处水下航行器缩比模型的流噪声声压谱特性。试验结果发现,上述因素对模型流噪声均有显著影响:模型头部端面直径越小,头部曲线段越长,其流噪声声压级越小;流噪声声压级随着来流速度的增大而增大;相比头部端面其他位置,驻点处的流噪声声压级最小。同时,运用相似率估算了大尺度航行器的流噪声声压谱,获得了较好的预测值。该研究成果对水下航行器的声学设计具有一定的指导意义。 |
| 关键词:
水下航行器
流噪声
水洞试验
相似律
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| Water-Tunnel Experiment about Flow-Noise Characteristic of Underwater Vehicle |
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| Huang Qiaogao, Pan Guang |
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| College of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The flow-noise experiments of underwater vehicle were conducted in the NWPU high speed water-tunnel. The flow-noise sound pressure spectrum characteristics of different underwater vehicle models were tested at different flow velocities and different testing point positions. The experimental results and their analysis show preliminarily that:(1) the flow-noise of underwater vehicle models was significantly influenced by fore-body linetype, flow velocities and testing point positions; (2) the flow-noise sound pressure level was smaller when the front-section diameter of fore-body was smaller and the length of fore-body was longer, the flow-noise sound pressure level increased with increasing flow velocity. (3) compared with other positions of the front-section,the flow-noise sound pressure level of the stagnation point was smallest. The flow-noise sound pressure spectra of large scale underwater vehicle were estimated with scaling law and better estimation value was obtained. We believe that the research results in this paper are helpful in the acoustic design of underwater vehicle. |
| Key words:
acoustic measuring instruments
acoustic noise measurement
angle of attack
autonomous underwater vehicles
boundary layers
data processing
design of experiments
flow fields
frequency response
high pass filters
hydrophones
schematic diagrams
sonar
turbine pumps
turbulent flow
velocity
flow-noise
scaling law
water-tunnel experiment
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| 收稿日期: 2014-09-11
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金(51279165)与教育部高等学校博士学科点科研基金(20126102110009)资助 |
| 通讯作者:
Email： |
| 作者简介: 黄桥高(1983-),西北工业大学讲师,主要从事水下航行器总体设计及水下减阻降噪技术研究。
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| 黄桥高 在本刊中的所有文章 |
| 潘光 在本刊中的所有文章 |
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