Paper
29 September 1995 Instantaneous flow measurements in a supersonic wind tunnel using spectrally resolved Rayleigh scattering
Richard G. Seasholtz, Alvin E. Buggele, Mark F. Reeder
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Abstract
Results of a feasibility study to apply laser Rayleigh scattering to nonintrusively measure flow properties in a small supersonic wind tunnel are presented. The technique uses an injection seeded, frequency doubled Nd:YAG laser tuned to an absorption band of iodine. The molecular Rayleigh scattered light is filtered with an iodine cell to block light at the laser frequency. The Doppler-shifted Rayleigh scattered light that passed through the iodine cell is analyzed with a planar mirror Fabry-Perot interferometer used in a static imaging mode. An intensified CCD camera is used to record the images. The images are analyzed at several subregions, where the flow velocity is determined. Each image is obtained with a single laser pulse, giving instantaneous measurements.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard G. Seasholtz, Alvin E. Buggele, and Mark F. Reeder "Instantaneous flow measurements in a supersonic wind tunnel using spectrally resolved Rayleigh scattering", Proc. SPIE 2546, Optical Techniques in Fluid, Thermal, and Combustion Flow, (29 September 1995); https://doi.org/10.1117/12.221516
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Cited by 10 scholarly publications.
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KEYWORDS
Rayleigh scattering

Light scattering

Laser scattering

YAG lasers

Absorption

Fabry–Perot interferometers

Iodine

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