Molecular flow velocity using Doppler shifted Raman spectroscopyMeasurements of molecular flow velocity, static pressure, and translational temperature in the free-stream of a supersonic wind tunnel and behind the shock of a simple model are reviewed. Based on the free-stream demonstration using inverse Raman spectroscopy, an experiment is outlined to investigate the lee-side flow field above a swept delta wing and simulated spectra expected for the leading-edge vortex are included. The extension of the technique to hypersonic wind tunnels is also explored through the use of simulated spectra.
Document ID
19870055779
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Exton, Reginald J. (NASA Langley Research Center Hampton, VA, United States)
Hillard, Mervin E., Jr. (NASA Langley Research Center Hampton, VA, United States)
Lempert, Walter R. (NASA Langley Research Center Hampton, VA, United States)
Covell, Peter F. (NASA Langley Research Center Hampton, VA, United States)
Miller, David S. (NASA Langley Research Center Hampton, VA, United States)