| DPIV在水洞流场均匀度校测中的应用 |
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| 引用本文： | 黄湛,申功炘,魏润杰,郭辉.DPIV在水洞流场均匀度校测中的应用[J].北京航空航天大学学报,2002,28(5):559-562. |
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| 作者姓名： | 黄湛 申功炘 魏润杰 郭辉 |
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| 作者单位： | 北京航空航天大学,飞行器设计与应用力学系 |
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| 摘 要： | 用数字式粒子图像测速技术(DPIV)及特定预偏置技术校测水洞流场,并将测量结果与用传统流场校测方法测得的结果相比较,发现特定预偏置技术显著提高了流场测量精度,适用于流场校测.
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| 关 键 词： | 水洞 流场校测试验 精度 数字式粒子图像测速 预偏置方法 |
| 文章编号： | 1001-5965(2002)05-0559-04 |
| 收稿时间： | 2001-02-19 |
| 修稿时间： | 2001年2月19日 |
Measurements of Velocity Uniformity in Watertunnel Using DPIV |
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| HUANG Zhan,SHEN Gong-xin,WEI Run-jie,GUO Hui.Measurements of Velocity Uniformity in Watertunnel Using DPIV[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(5):559-562. |
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| Authors: | HUANG Zhan SHEN Gong-xin WEI Run-jie GUO Hui |
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| Institution: | Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics |
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| Abstract: | A Digital Particle Image Velocimetry(DPIV)system using a special Pre bias method was applied to flow field calibration measurements in the testing section of a water tunnel. Compared with the measurement results obtained by traditional methods (Pitot probe, LDV and traditional DPIV),the results show that the special Pre bias method can improve measurement accuracy with almost one order level and is fit for flow field velocity uniformity measurement. |
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| Keywords: | water tunnels flow field calibration tests precision DPIV pre bias method |
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