| C形起动时鱼尾模型的流场结构 |
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| 引用本文： | 敬军,吴燕峰,尹协振.C形起动时鱼尾模型的流场结构[J].中国科学技术大学学报,2007,37(10):1236-1241. |
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| 作者姓名： | 敬军 吴燕峰 尹协振 |
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| 作者单位： | 1. 中国科学技术大学近代力学系,安徽合肥,230027;中国舰船研究设计中心,湖北武汉,430064
2. 中国科学技术大学近代力学系,安徽合肥,230027 |
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| 基金项目： | 国家自然科学基金;中国科学院知识创新工程项目;中船重工集团公司第701所四室青年创新基金 |
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| 摘 要： | 在活鱼观察实验的基础上,用对称和非对称两种模型模拟了鱼类尾鳍C形起动时周围的流场结构,测量了模型受到的力和力矩.通过氢气泡和PIV方法研究了对称和非对称尾鳍C形起动时产生的旋涡结构特征;通过涡量矩理论定性分析了旋涡流场结构与C形起动模型动力学特征的关联.
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| 关 键 词： | C形起动 尾鳍 旋涡 氢气泡 涡量矩理论 |
| 文章编号： | 0253-2778（2007）10-1236-06 |
| 修稿时间： | 2007-05-11 |
Flow structure of fish tail models in C-starts |
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| JING Jun,WU Yan-feng,YIN Xie-zhen.Flow structure of fish tail models in C-starts[J].Journal of University of Science and Technology of China,2007,37(10):1236-1241. |
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| Authors: | JING Jun WU Yan-feng YIN Xie-zhen |
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| Institution: | 1. Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China 2. China Ship Development and Design Center, Wuhan 430064, China |
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| Abstract: | Based on the observation tests of living fish,two types of models,symmetrical and asymmetrical,were used to simulate the flow structure of fish tail in C-starts.Furthermore,the force and moments of models were measured.Two methods of the H2 bubble and PIV(particle image velocimetry) technique were selected to visualize the vortex structure around the tail models in C-starts and the vorticity-moment theorem were used to analyze qualitatively the vortex field and its correlation with the dynamic feature of the models in C-starts. |
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| Keywords: | PIV |
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