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论文:2014,Vol:32,Issue(6):917-922 |
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引用本文： |
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叶鹏程, 潘光. 水下高速航行器流噪声数值仿真与分析[J]. 西北工业大学学报 |
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Ye Pengcheng, Pan Guang. Numerical Simulation and Analysis of Flow Noise for Underwater High-Speed Vehicle[J]. Northwestern polytechnical university |
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| 水下高速航行器流噪声数值仿真与分析 |
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| 叶鹏程, 潘光 |
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| 西北工业大学 航海学院, 陕西 西安 710072 |
| 摘要: |
| 运用计算流体力学方法仿真计算不同头型、不同航速航行器流噪声,得到流噪声分布及随航速变化规律。通过对比分析数值仿真结果发现,航行器流噪声随航速的增加而平稳增大。在相同条件下,平头航行器流噪声总声压级略高于圆头航行器。为了更好预测高航速条件下航行器流噪声,对空化区流噪声进行了初步探索。 |
| 关键词:
水下航行器
流噪声
空化
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| Numerical Simulation and Analysis of Flow Noise for Underwater High-Speed Vehicle |
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| Ye Pengcheng, Pan Guang |
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| College of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The flow noise of underwater vehicle as the main self-noise source,which disturbs the normal working ofsonar is especially serious during natural cavitation. Computational fluid dynamics (CFD) is used to calculate flownoise of vehicle with different head shapes and velocities. The distribution and rule of flow noise are obtained for va-rious velocities. It is found that the flow noise of vehicle increases steadily with increasing velocity through the com-parison and analysis of numerical simulation results. Under the same conditions,the flow noise of flat-head vehicleis a little larger than round-head. For the sake of predicting the flow noise of high-speed vehicle,the flow noiseacross cavitation regions is researched preliminarily in this paper. |
| Key words:
acoustic fields
autonomous underwater vehicles
boundary conditions
cavitation
computational fluiddynamics
computer simulation
drag coefficient
flow fields
flow rate
mathematical models
meshgeneration
Navier Stokes equations
sonar
turbulence models
two phase flow
underwateracoustics
flow noise
high-speed
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| 收稿日期: 2014-04-26
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金(51279165)资助 |
| 通讯作者:
Email： |
| 作者简介: 叶鹏程(1991-)，西北工业大学博士研究生，主要从事水下航行器总体设计、流体力学及多学科优化设计等研究。
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| 叶鹏程 在本刊中的所有文章 |
| 潘光 在本刊中的所有文章 |
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