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Proceedings Paper

Novel mixing nozzles for supersonic chemical oxygen iodine laser
Author(s): Takayuki Hirata; Masamori Endo; Kazuhiko Shinoda; Tatsuo Osaka; Kenzo Nanri; Shuzaburo Takeda; Tomoo Fujioka
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Paper 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.

Paper Details

Date Published: 10 November 2003
PDF: 10 pages
Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); doi: 10.1117/12.515590
Show Author Affiliations
Takayuki Hirata, Tokai Univ. (Japan)
Masamori Endo, Tokai Univ. (Japan)
Kazuhiko Shinoda, Tokai Univ. (Japan)
Tatsuo Osaka, Tokai Univ. (Japan)
Kenzo Nanri, Tokai Univ. (Japan)
Shuzaburo Takeda, Tokai Univ. (Japan)
Tomoo Fujioka, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 5120:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Krzysztof M. Abramski; Edward F. Plinski; Wieslaw Wolinski, Editor(s)

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