| 氢气泡粒子图像测速技术及初步应用 |
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| 引用本文： | 李静,姜曼松,孙泰屹,郑晓伟.氢气泡粒子图像测速技术及初步应用[J].水道港口,2003,24(1):39-42. |
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| 作者姓名： | 李静 姜曼松 孙泰屹 郑晓伟 |
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| 作者单位： | 1. 武汉理工大学交通学院,武汉430063
2. 武汉理工大学能源与动力工程学院,武汉430063 |
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| 摘 要： | 采用氢气泡粒子图像测速技术 (DigitalParticleImageVelocimetry,DPIV)对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。本文采用静止坐标 ,用简单的方法可以达到相机随流场移动的效果 ,从而利用DPIV技术将原来显示不出来的涡在变换后的参考坐标系下显示出来。发现DPIV实验结果静止坐标和运动坐标间的联系 ,并与实际流动显示结果进行比较 ,发现一般拍摄的流动显示结果为静止坐标结果 ,而直接DPIV计算结果为运动坐标结果。
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| 关 键 词： | DPIV技术 氢气泡 圆柱绕流 静止坐标 |
| 文章编号： | 1005-8443(2003)01-0039-03 |
| 修稿时间： | 2003年1月7日 |
Hydrogen Bubble Particle Image Velocimetry Technique and Its Primary Application |
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| Abstract: | Hydrogen bubble DPIV technique is adopted to study column circuitous flow.Generally,the camera is fixed in shooting with DPIV,by which a kind of distribution of velocity field can be obtained.Static axis is adopted to get the result that the camera is moving together with flow field, Then,the vortex invisible on primary axis can be shown by DPIV.The connection between the DPIV test result of the static axis and that of locomotive axis is found.Compared with the actual flow visualization result,it's found that the common flow visualization result is that in static axis and the direct DPIV result is that in locomotive axis. |
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| Keywords: | DPIV technique hydrogen bubble column circuitous flow locomotive axis static axis |
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