Performance of Combustion-Driven CO[sub]2[/sub] Gasdynamic Lasers

Robert F. Walter; Thomas R. Brown

doi:10.1117/12.950513

20 June 1989 Performance of Combustion-Driven CO₂ Gasdynamic Lasers

Robert F. Walter, Thomas R. Brown

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950513
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

The performance of combustion-driven CO2 gasdynamic lasers (GDL's) was calculated and compared to experimental data for several gas mixtures produced by the combustion of different fuel/oxidizer combinations. The calculations were performed with a seven-temperature nozzle kinetics model which includes vibrational energy transfer processes involving ten combustion byproduct species. This model was used to analyze experimental results from a number of recent investigations which employed benzene and other liquid hydrocarbon fuels. The effects of large amounts of molecular O2 produced under oxidizer-rich combustion conditions were studied in detail. The calculated results agreed well with small signal gain data obtained for several fuels. The capability to make accurate predictions of the small signal gain for this wide range of gas mixtures and initial conditions makes this model useful in the design of optical resonators for GDL's.

Citation Download Citation

Robert F. Walter and Thomas R. Brown "Performance of Combustion-Driven CO₂ Gasdynamic Lasers", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950513

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