A Real Time Interferometry System for Unsteady Flow Measurements

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Authors
Brock, N.
Chandrasekhara, M.S.
Carr, L.W.
Subjects
interferometry
real-time techniques
unsteady flows
dynamic stall
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Abstract
A simple real-time interferometer system was developed for use in dynamic stall and other unsteady flow research at compressible flow speeds. A conventioned schlieren system was modified to operate as a point diffraction interferometer. The implementation of this interferometer is discussed and results of trails with different point diffractors are presented in this paper. The performance of the interferometer under various flow conditions was investigated. Results are presented which show the effects of the interferometer parameters such as pinhole size and pinhole-plate optical density on the performance of the system.
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ICIAS '91 RECORD, IEEE Publication 91CH3028-8, pp. 423-430.
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U.S. Army Research Office ARO 27894.9-EG
MIPR-ARO-114-91
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U.S. Army Research Office ARO 27894.9-EG
MIPR-ARO-114-91
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Citation
N.Brock, M.S.Chandrasekhara, and L.W.Carr, モA Real Time Interferometry System for Unsteady Flow Measurementsヤ, ICIASFメ91 RECORD, IEEE Publication 91CH3028-8, pp. 423-430.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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