Publication Date:
2019-08-13
Description:
Two laser-based measurement techniques have been used to characterize an axisymmetric, combustion-heated supersonic jet issuing into static room air. The dual-pump coherent anti-Stokes Raman spectroscopy (CARS) measurement technique measured temperature and concentration while the interferometric Rayleigh scattering (IRS) method simultaneously measured two components of velocity. This paper reports a preliminary analysis of CARS-IRS temperature and velocity measurements from selected measurement locations. The temperature measurements show that the temperature along the jet axis remains constant while dropping off radially. The velocity measurements show that the nozzle exit velocity fluctuations are about 3% of the maximum velocity in the flow.
Keywords:
Fluid Mechanics and Thermodynamics
Type:
55th JANNAF Propulsion Meeting/42nd Combustion/30th Airbreathing Propulsion/30th Exhaust Plume Technology/ 24th Propulsion Systems Hazards/12th SPIRITS User Group Joint Subcommittee Meeting; May 12, 2006 - May 16, 2006; Newton, MA; United States
Format:
application/pdf
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