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Proceedings Paper

A Review Of Aero-Optical Measurements And Interpretation
Author(s): William D Bachalo
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Paper Abstract

A review of the application of optical interferometry to aerodynamics measurements and the determination of optical degradation due to the aircraft flow field is presented. Early work on transonic aerodynamics demonstrated that holographic interferometry could provide accurate flow visualization and quantitative results for general wind tunnel testing. Two-dimensional transonic flow fields investigated were used to obtain quantitative measurements which were compared to other flow measurements including surface pressure and laser Doppler velocimeter data. Even in large-scale facilities, the results were in good agreement. Investigations on the related problem of optical transmission through turbulent compressible flow fields were also discussed. These results provided information on the optical distortion produced by the flow field in addition to information on the flow field itself.

Paper Details

Date Published: 19 December 1986
PDF: 11 pages
Proc. SPIE 0679, Current Developments in Optical Engineering and Diffraction Phenomena, (19 December 1986); doi: 10.1117/12.939571
Show Author Affiliations
William D Bachalo, Aerometrics, Inc. (United States)

Published in SPIE Proceedings Vol. 0679:
Current Developments in Optical Engineering and Diffraction Phenomena
Robert E. Fischer; James E. Harvey; Warren J. Smith, Editor(s)

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