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| 氢气泡网格图像测速法—瞬态二维速度场测量 | |
| 引用本文： | 申功Xin 马广云. 氢气泡网格图像测速法—瞬态二维速度场测量[J]. 空气动力学学报, 1994, 12(2): 186-190 |
| 作者姓名： | 申功Xin 马广云 |
| 作者单位： | 北京航空航天大学 |
| 摘 要： | 本文介绍一种二维瞬态多点流场测量方法－网格图像测速法。运用数字图像处理技术由氢气泡时间－染色线流动显示图像自动生成网格图像，网格图像的网格结点为氢气泡块角点的拟合点，由网格结点的位移确定流场速度。 |
| 关 键 词： | 网格图像测速 速度 测量 氢气泡法 |
Hydrogen Bubble Mesh-Image Velocimetry---a Measurement Technique of 2-D Instantaneous Velocity Distribution for Unsteady Flows |
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| Shen Gongxin, Ma Guangyun. Hydrogen Bubble Mesh-Image Velocimetry---a Measurement Technique of 2-D Instantaneous Velocity Distribution for Unsteady Flows[J]. Acta Aerodynamica Sinica, 1994, 12(2): 186-190 | |
| Authors: | Shen Gongxin Ma Guangyun |
| Affiliation: | Beijing University of Aeronautics and Astronautics |
| Abstract: | A measurement technique to obtain 2-D instantaneous velocitydistribution for the unsteady flows,i.e. Hydrogen Bubble Mesh-Imagevelocimetry, is presented.Using digital image processing method, themesh-images are automatically formed from the flow visualization picturesobtained from hydrogen bubble time-streak line technique,The cornerpositions of hydrogen bubble squares are fitted by the positions of thenodes in the mesh-images.The 2-D velocity distribution are derived bythe displacements of the nodes in the mesh-images. |
| Keywords: | mesh-image velocimetry velocity measurement hydrogenbubble method flow visualization digital image piocessing. |
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