| 扫描光屏法在PIV技术测量自由剪切层中的应用 |
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| 引用本文： | 吴嘉,许宏庆.扫描光屏法在PIV技术测量自由剪切层中的应用[J].水动力学研究与进展(A辑),1997,12(2):157-163. |
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| 作者姓名： | 吴嘉 许宏庆 |
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| 作者单位： | 清华大学工程力学系 北京100084 |
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| 摘 要： | ＰＩＶ技术是九十年代实验流体力学的重大成就。它能够提供瞬时整个流场的定量信息，而且具有很高的空间分辨率和很好的精度。为了获得清晰可靠的ＰＩＶ底片，人们对实验方法作了很多改进。本文讨论了近年使用较多的扫描光屏法，提出了该方法在使用中特别注意的一些问题，并给出了用该方法测量自由剪切流场的结果。
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| 关 键 词： | 扫描光屏法 自由剪切层 粒子图象测速 流体 |
The Application of Sweep Light Method in Measurement of Free Shear Layer Using PIV Technique |
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| Wu Jia Xu Hong-qing.The Application of Sweep Light Method in Measurement of Free Shear Layer Using PIV Technique[J].Journal of Hydrodynamics,1997,12(2):157-163. |
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| Authors: | Wu Jia Xu Hong-qing |
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| Abstract: | PIV (Particle Image Velocimetry) technique is a great achievement of experimental fluid mechanics in 1980s. It can provide instantaneous velocity of whole flow field and has high resolving power and high precision. In order to get clear and reliable PIV negative, many experimental methods have been improved. In this paper,we discussed the sweep light method which had been used more frequently. Some problems are raised and clarified. Using the method. ,we measured free shear layer and got some worthy results. |
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| Keywords: | PIV technique sweep light method free shear layer |
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