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Single-pulse measurement of density and temperature in a turbulent, supersonic flow using UV laser spectroscopyNonintrusive measurements of density and temperature and their turbulent fluctuation levels have been obtained in the boundary layer of an unseeded, Mach 2 wind tunnel flow. The spectroscopic technique that was used to make the measurements is based on the combination of laser-induced oxygen fluorescence and Raman scattering by oxygen and nitrogen from the same laser pulse. Results from this demonstration experiment compare favorably with previous measurements obtained in the same facility from conventional probes and an earlier spectroscopic technique.
Document ID
19930032569
Document Type
Reprint (Version printed in journal)
Authors
Fletcher, D. G. (NASA Ames Research Center Moffett Field, CA, United States)
Mckenzie, R. L. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 15, 2013
Publication Date
November 15, 1992
Publication Information
Publication: Optics Letters
Volume: 17
Issue: 22
ISSN: 0146-9592
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Distribution Limits
Public
Copyright
Other