Novel mixing nozzles for supersonic chemical oxygen iodine laser

Takayuki Hirata; Masamori Endo; Kazuhiko Shinoda; Tatsuo Osaka; Kenzo Nanri; Shuzaburo Takeda; Tomoo Fujioka

doi:10.1117/12.515590

10 November 2003 Novel mixing nozzles for supersonic chemical oxygen-iodine laser

Takayuki Hirata, Masamori Endo, Kazuhiko Shinoda, Tatsuo Osaka, Kenzo Nanri, Shuzaburo Takeda, Tomoo Fujioka

Proceedings Volume 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2003) https://doi.org/10.1117/12.515590
Event: XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2002, Wroclow, Poland

Abstract

Mixing enhancement technique of supersonic chemical oxygen-iodine laser (COIL) is studied. The difficulty of supersonic mixing due to the compressibility of the fluid has been overcome by the introduction of streamwise vortex into the flow. The developed nozzle is a staggered array of wedges, looks like “X” letter from the side of the flow duct. Computational fluid dynamics (CFD) is employed for the design optimization of the proposed mixing nozzle. A remarkable mixing condition is found when iodine injector is located at the exit plane of the mixing nozzle. Experiments are conducted and good agreement with calculation is obtained in terms of iodine molecule distribution. A 266W of output power with chemical efficiency of 14.6% is obtained and good mixing capability of the proposed nozzle design is confirmed.

Citation Download Citation

Takayuki Hirata, Masamori Endo, Kazuhiko Shinoda, Tatsuo Osaka, Kenzo Nanri, Shuzaburo Takeda, and Tomoo Fujioka "Novel mixing nozzles for supersonic chemical oxygen-iodine laser", Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); https://doi.org/10.1117/12.515590

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