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动网格技术在非稳态空化流计算中的应用
Investigation of dynamic mesh technique and unsteady cavitation flows
查看参考文献9篇
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文摘
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该文基于对钝锥头航行体的空化流动的实验观测, 利用商业软件FLUENT~[1]考核了分块网格模型对降低动网格方法误差影响、提高空化流计算精度的可行性和有效性. 通过与实验的对比表明, 采用分块网格模型能够使基于动网格方法的非稳态空化流计算很好的捕捉到空泡生长, 回射, 翻卷, 脱落, 溃灭这一过程, 并获得较为准确的航行体的运动轨迹和所受的水动力. 进而分析了流场涡结构与空泡演化的机理 |
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其他语种文摘
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Caviation flow over the vehicle with blunt cone was observed experimentally. The program package FLUENT was adopted to assess the feasibility and effectiveness of multi-block meshes in reducing the error caused by the dynamic mesh method and in improving the accuracy of computation. Then the capability of computing model based on the dynamic mesh method in simulating the inception,re-entrant jet, rolling, shedding and collapse of the attached cavities was assessed. The trajectory of the vehicle and hydrodynamic forces were calculated and was found to be in good agreement with experimental data. Finally the vortex structures and mechanism of cavity evolution were investigated |
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来源
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水动力学研究与进展. A辑
,2010,25(2):190-198 【核心库】
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DOI
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10.3969/j.issn.1000-4874.2010.02.008
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关键词
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水下航行体
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非稳态空化流
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动网格技术
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数值模拟
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涡结构
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地址
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中国科学院力学研究所, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4874 |
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学科
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水利工程 |
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文献收藏号
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CSCD:3949689
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参考文献 共
9
共1页
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