A computational fluid dynamics simulation of a supersonic chemical oxygen-iodine laser

K. Waichman, V. Rybalkin, A. Katz, Z. Dahan, B. D. Barmashenko, S. Rosenwaks

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The dissociation of I2 molecules at the optical axis of a supersonic chemical oxygen-iodine laser (COIL) was studied via detailed measurements and three dimensional computational fluid dynamics calculations. Comparing the measurements and the calculations enabled critical examination of previously proposed dissociation mechanisms and suggestion of a mechanism consistent with the experimental and theoretical results. The gain, I 2 dissociation fraction and temperature at the optical axis, calculated using Heidner's model (R.F. Heidner III et al., J. Phys. Chem. 87,2348 (1983)), are much lower than those measured experimentally. Agreement with the experimental results was reached by using Heidner's model supplemented by Azyazov-Heaven's model (V.N. Azyazov and M.C. Heaven, AIAA J. 44, 1593 (2006)) where I2(A') and vibrationally excited O2(a 1Δ) are significant dissociation intermediates.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
DOIs
StatePublished - 1 Nov 2007
EventXVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers - Gmunden, Austria
Duration: 4 Sep 20068 Sep 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6346 PART 2
ISSN (Print)0277-786X

Conference

ConferenceXVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Country/TerritoryAustria
CityGmunden
Period4/09/068/09/06

Keywords

  • Chemical lasers
  • Iodine
  • Oxygen
  • Power lasers

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