The effects of motive gas physical properties on the performance of ejector for chemical lasers

Jungkun Jin; Sehoon Kim; Hyuckmo Kwon; Sejin Kwon

doi:10.1117/12.611002

23 March 2005 The effects of motive gas physical properties on the performance of ejector for chemical lasers

Jungkun Jin, Sehoon Kim, Hyuckmo Kwon, Sejin Kwon

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611002
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

Axi-symmetric annular type ejector has been developed as a pressure recovery system for HF/DF chemical laser. Ejector was tested using air as operating gases and low-pressure entrained flow was obtained. In this paper, we changed motive gas since operating gases for chemical laser system are products of chemical reaction. By selection of motive gas, physical properties of operating gas changes, therefore the performance of ejector is different for each motive gas, i.e., specific heat at constant pressure (C_P) and average molecular weight (MW) on the effectiveness of ejection. The research was carried out by both numerical analysis using commercial CFD code, FLUENT and experiments.

Citation Download Citation

Jungkun Jin, Sehoon Kim, Hyuckmo Kwon, and Sejin Kwon "The effects of motive gas physical properties on the performance of ejector for chemical lasers", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611002

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