Numerical Analysis On Gain Of C[sub]6[/sub]H[sub]6[/sub]-O[sub]2[/sub]-N[sub]2[/sub] Type GDL

Masahito Tatsumi; Yasuhiro Wada; Shigeru Sato; Tadaharu Watanuki; Hirotoshi Kubota

doi:10.1117/12.950515

20 June 1989 Numerical Analysis On Gain Of C₆H₆-O₂-N₂ Type GDL

Masahito Tatsumi, Yasuhiro Wada, Shigeru Sato, Tadaharu Watanuki, Hirotoshi Kubota

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950515
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

The two-dimensional vibrational non-equilibrium flow field and the nozzle shape effects on CO2 GDL (Gasdynamic Laser) performance are numerically analyzed by a point implicit scheme. It is shown that the Shock Free Minimum Length nozzle (SFML-nozzle) is superior to other nozzles in the viewpoint of GDL characteristics such as the small-signal gain and the maximum power available. Furthermore, the effects of combustion by-products such as O2,CO on the small-signal gain are investigated. It is concluded that such by-products have a negative effect on GDL gain characteristics. The effects of H20 concentration on the small-signal gain are also investigated considering H2O vibrational relaxation. These numerical analyses are performed for the predictions of CO2 GDL.

Citation Download Citation

Masahito Tatsumi, Yasuhiro Wada, Shigeru Sato, Tadaharu Watanuki, and Hirotoshi Kubota "Numerical Analysis On Gain Of C₆H₆-O₂-N₂ Type GDL", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950515

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