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Proceedings Paper

Moire interference measurement of boundary layer in hypersonic shock tunnel
Author(s): Anzhi He; Peng Cheng Miao; Hai-Ling Wang; Dapeng Yan
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Paper Abstract

This paper presents the interference measurement of the boundary layer in hypersonic shock tunnel with a new large aperture, high sensitive moire interferometer. The principle of the interferometer is presented. This paper shows that the conjugate relation between the model in the tunnel and the observing plate can eliminate the diffracting affection due to the model and therefore the boundary layer can be visualized. The moire interferograms of the boundary were processed with computer digital image process technique. From the deformation of moire fringe, the density profile is presented.

Paper Details

Date Published: 1 January 1992
PDF: 4 pages
Proc. SPIE 1553, Laser Interferometry IV: Computer-Aided Interferometry, (1 January 1992); doi: 10.1117/12.135352
Show Author Affiliations
Anzhi He, East China Institute of Technology (China)
Peng Cheng Miao, East China Institute of Technology (China)
Hai-Ling Wang, East China Institute of Technology (China)
Dapeng Yan, East China Institute of Technology (China)


Published in SPIE Proceedings Vol. 1553:
Laser Interferometry IV: Computer-Aided Interferometry
Ryszard J. Pryputniewicz, Editor(s)

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