| DPIV对圆柱绕流的研究及运动参考坐标系的转换 |
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| 引用本文： | 李静,姜曼松.DPIV对圆柱绕流的研究及运动参考坐标系的转换[J].实验流体力学,2004,18(1):89-91. |
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| 作者姓名： | 李静 姜曼松 |
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| 作者单位： | 1. 长江科学院水工所,武汉,430010
2. 武汉理工大学交通学院,武汉,430063 |
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| 摘 要： | 采用以氢气泡为示踪粒子的数字粒子图像测速技术(digitalparticleimagevelocimetry,DPIV)对三种不同雷诺数下的圆柱绕流进行了研究。一般DPIV拍摄时相机固定,可得出一种速度场分布。笔者采用静止坐标,用简单的方法可以达到相机随流场移动的效果,DPIV处理结果可以看到一些更深入的情况。
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| 关 键 词： | DPIV技术 氢气泡 圆柱绕流 运动坐标 静止坐标 |
| 文章编号： | 1007-3124(2004)01-0089-03 |
| 修稿时间： | 2003年2月11日 |
The investigation of column circuitous flow using DPIV technique and transition to locomotive referenced axis |
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| LI Jing,JIANG Man-song.The investigation of column circuitous flow using DPIV technique and transition to locomotive referenced axis[J].Experiments and Measur in Fluid Mechanics,2004,18(1):89-91. |
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| Authors: | LI Jing JIANG Man-song |
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| Institution: | LI Jing~1,JIANG Man-song~2 |
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| Abstract: | A DPIV technique using hydrogen bubble is adopted to study flow around column under three different Reynolds number in the paper. The camera is generally fixed in DPIV. In the paper a simple method adopting static coordinate system is introduced to get the results as camera is moving together with free flow. Some further view of flow can be obtained by the method. |
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| Keywords: | DPIV technique hydrogen bubble column circuitous flow locomotive axis static axis |
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