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Appl Opt. 1991 Mar 1;30(7):770-4. doi: 10.1364/AO.30.000770.

New method of asymmetric flow field measurement in hypersonic shock tunnel.

Abstract

In this paper a method of large aperture (?500 mm) high sensitivity moire deflectometry is used to obtain multidirectional deflectograms of the asymmetric flow field in hypersonic (M = 10.29) shock tunnel. At the same time, a 3-D reconstructive method of the asymmetric flow field is presented which is based on the integration of the moire deflective angle and the double-cubic many-knot interpolating splines; it is used to calculate the 3-D density distribution of the asymmetric flow field.

PMID:
20582058
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