A laser-induced fluorescence (LIF) technique has been developed that provides a means for nonintrusive measurements of fluctuating temperatures in low temperature turbulent flows. We describe the capabilities of the method and its application to a simple 2-D turbulent boundary layer flow at Mach 2. To our knowledge these data are the first of their kind obtained by nonintrusive means with spatial and temporal resolution adequate for turbulent boundary layer analyses.

© 1984 Optical Society of America

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