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Proceedings Paper

The effects of motive gas physical properties on the performance of ejector for chemical lasers
Author(s): Jungkun Jin; Sehoon Kim; Hyuckmo Kwon; Sejin Kwon
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Paper 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 (CP) 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.

Paper Details

Date Published: 23 March 2005
PDF: 5 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611002
Show Author Affiliations
Jungkun Jin, Korea Advanced Institute of Science and Technology (South Korea)
Sehoon Kim, Korea Advanced Institute of Science and Technology (South Korea)
Hyuckmo Kwon, Korea Advanced Institute of Science and Technology (South Korea)
Sejin Kwon, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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