Moire interference measurement of boundary layer in hypersonic shock tunnel

Anzhi He; Peng Cheng Miao; Hai-Ling Wang; Dapeng Yan

doi:10.1117/12.135352

1 January 1992 Moire interference measurement of boundary layer in hypersonic shock tunnel

Anzhi He, Peng Cheng Miao, Hai-Ling Wang, Dapeng Yan

Proceedings Volume 1553, Laser Interferometry IV: Computer-Aided Interferometry; (1992) https://doi.org/10.1117/12.135352
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download Citation

Anzhi He, Peng Cheng Miao, Hai-Ling Wang, and Dapeng Yan "Moire interference measurement of boundary layer in hypersonic shock tunnel", Proc. SPIE 1553, Laser Interferometry IV: Computer-Aided Interferometry, (1 January 1992); https://doi.org/10.1117/12.135352

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