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23 March 2005 Turnable CO2 laser measurements of composition and concentrations in multicomponent wake behind supersonic civil aircraft
Sergey P. Ilyin, Anatoly A. Adamenkov, Evgeniy S. Asmolov, Yuri Nickolaevich Bulkin, Boris A. Vyskubenko, Maxim Yu. Deryugin, Yuriy V. Kolobyanin, Evgeniy A. Kudryashov, Dmitriy A. Rusyanov, Andrey V. Shustov
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Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611522
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic
Abstract
The paper describes experimental and theoretical investigations on tunable CO2-laser-assisted measurements of the composition and concentrations in multicomponent wake behind supersonic civil aircraft. An experimental facility based on a tunable CO2 laser and multipass cell is presented and results of experiments on determination of substances typical for civil aircraft wake (carbon and nitrogen oxides, ozone, water vapor, etc.) are given. The conditions characteristic of the aircraft wake are simulated. A possibility to perform real-time measurements of substances in question at a level of 80 ppb (80 billion-1) is demonstrated. Calculative models were created and results of generation and evolution of substances in question in a turbulent twisted flow are reported. A mathematical model and program code were validated for numerical simulations of two-phase turbulent flow in a single trailing vortex in initial stage of contrail generation behind supersonic aircraft. The work was carried out under the project #1477 supported financially by the International Scientific-Research Center, Moscow.
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Sergey P. Ilyin, Anatoly A. Adamenkov, Evgeniy S. Asmolov, Yuri Nickolaevich Bulkin, Boris A. Vyskubenko, Maxim Yu. Deryugin, Yuriy V. Kolobyanin, Evgeniy A. Kudryashov, Dmitriy A. Rusyanov, and Andrey V. Shustov "Turnable CO2 laser measurements of composition and concentrations in multicomponent wake behind supersonic civil aircraft", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611522
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KEYWORDS
Carbon dioxide lasers
Ozone
Mathematical modeling
Photodetectors
Computing systems
Nitrogen
Optical amplifiers
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