| 潜艇流水孔排水与进水过程数值仿真研究 |
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| 引用本文： | 孟生,张宇文,张平.潜艇流水孔排水与进水过程数值仿真研究[J].西北工业大学学报,2011,29(2):257-262. |
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| 作者姓名： | 孟生 张宇文 张平 |
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| 作者单位： | 1. 西北工业大学航海学院,陕西西安710072;中国船舶重工集团公司719所,湖北武汉430064
2. 西北工业大学航海学院,陕西西安,710072 |
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| 摘 要： | 以潜艇流水孔为研究对象,基于大涡模拟(LES)对潜艇流水孔三维模型进行数值模拟,比较排水和进水过程中潜艇航行阻力以及流噪声水平的差异。结果表明,潜艇排水过程呈现负阻力,对航行起助推作用。而进水过程阻力表现为正阻力,对航行起阻碍作用。排水过程较进水过程拥有更高的噪声级,流水孔位置处流噪声差异主要体现在低频段,高频段两者差异较小。可为潜艇流水孔的设计提供参考。
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| 关 键 词： | 潜艇 数值模拟 大涡模拟 流噪声 排水 进水 流水孔 |
Numerically Simulating Three-DimensionaI Model of Water Hole of Submarine Using Large Eddy Simulation(LES)Turbulence Model |
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| Meng Sheng,Zhang Yuwen,Zhang Ping.Numerically Simulating Three-DimensionaI Model of Water Hole of Submarine Using Large Eddy Simulation(LES)Turbulence Model[J].Journal of Northwestern Polytechnical University,2011,29(2):257-262. |
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| Authors: | Meng Sheng Zhang Yuwen Zhang Ping |
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| Affiliation: | 1(1.College of Marine Enigeering,Northwestern Polytechnical University,Xi′an 710072,China2.Institute 719 of China Shipbuilding Industry Corporation,Wuhan 430064,China) |
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| Abstract: | Sections 1 and 2 of the full paper explain how to use LES turbulence model to do numerical simulation.Section 3 presents numerical simulation results,given in Tables 3 through 7 and Figs.6 and 8,and their analysis.Subsection 3.1 is entitled water hole resistance characteristics analysis;subsection 3.2 is entitled water hole flow noise characteristics analysis.Section 4 presents three preliminary conclusions,whose core consists of: The process of drainage presented negative resistance which brought in boosti... |
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| Keywords: | submarines numerical methods simulation large eddy simulation(LES) flow noise drainage inflow water hole |
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