| 潜艇非稳态流场计算流体力学不确定度分析 |
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| 引用本文： | 姚震球,杨春蕾. 潜艇非稳态流场计算流体力学不确定度分析[J]. 武汉造船, 2009, 0(3): 40-43 |
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| 作者姓名： | 姚震球 杨春蕾 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院,江苏镇江212003 |
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| 摘 要： | 依照ITTC推荐规程对美国DARPA潜艇模型SUBOFF光体在不考虑自由表面情况下的CFD计算进行不确定度分析。选取中间尺度的时间步长，验证中采用细、中、粗三套网格。在最精细的网格上进行不同时间步长的研究。最后对潜艇表面压力计算进行确认。
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| 关 键 词： | 计算流体力学 不确定度分析 潜艇模型 SUBOFF |
CFD Uncertainty Analysis of Unsteady Flows around a Submarine |
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| YAO Zhen-qiu,YANG Chun-lei. CFD Uncertainty Analysis of Unsteady Flows around a Submarine[J]. Wuhan Shipbuilding, 2009, 0(3): 40-43 |
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| Authors: | YAO Zhen-qiu YANG Chun-lei |
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| Affiliation: | (School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China) |
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| Abstract: | The uncertainty in CFD was analyzed by the numerical results of the pressure of a hypothetical submarine model DARPA SUBOFF without appendages without considering the free-water surface according to the ITTC Recommended Procedures. For the grid study, medium time steps were used to obtain solutions on the fine, medium and coarse grids. For the time step study, the finest grid was used to obtain solutions with different time steps size. Finally the validation process of the pressure of the submarine is performed. |
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| Keywords: | computational fluid dynamics （CFD） uncertainty analysis submarine model SUBOFF |
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