Abstract
Laser Raman Scattering (LRS) has been investigated as a possible approach toward providing a nonperturbing flow calibration method for arc-heated wind-tunnel facilities. Such a calibration is needed to evaluate the chemical and thermodynamic properties of the high-temperature air flow which cannot be accurately determined using standard probe techniques. Theoretical calculations showed that the number densities and vibrational temperatures of nitrogen, oxygen, and nitric oxide could be obtained using the Raman spectroscopic method. Exploratory experimental LRS results obtained in the Air Force Flight Dynamics Laboratory 50-Megawatt Re-entry Nose Tip (RENT) Facility showed that it is indeed feasible to apply LRS to arc-tunnel flow diagnostics.
* Dr. Boiarski was a visiting Research Scientist at ARL under Contract F33615-71-C-1463 at the time the experiments were performed.
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References
A. A. Boiarski and F. L. Daum, “An Application of Laser-Raman-Spectroscopy to Thermochemical Measurements in an Arc-Heated Wind Tunnel Flow,” Aerospace Research Laboratories Report No. ARL 72–0126 (1972).
F. N. Mastrup, “Development of Spectroscopic and Optical Scattering Diagnostics for Nonequilibrium Reacting Gas Flows,” AFFDL TR 70–17 (1970).
D. A. Leonard, “Feasibility Study of Remote Monitoring of Gas Pollutant Emissions by Raman Spectroscopy,” AVCO Research Report 362 (1970).
L. R. Lawrence Jr., R. E. Walterick, T. M. Weeks, and J. P. Doyle Jr., “Total Enthalpy Measurements from Blunt-Body Gas Cap Emission in Arc-Heated Wind Tunnels,” AIAA Paper No. 72–1021 (1972).
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© 1974 Springer Science+Business Media New York
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Boiarski, A.A., Daum, F.L. (1974). Laser Raman Scattering — A Technique for Arc-Tunnel Flow Calibration. In: Lapp, M., Penney, C.M. (eds) Laser Raman Gas Diagnostics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-2103-3_18
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DOI: https://doi.org/10.1007/978-1-4684-2103-3_18
Publisher Name: Springer, Boston, MA
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