The objective of the presented work was the investigation of two-photon laser-induced fluorescence excitation spectra of carbon monoxide (CO) molecules (B-X) in a carbon dioxide () flow with an enthalpy of . The flow was generated with an arcjet-driven plasma wind tunnel. For validation, different stoichiometric premixed flat flames and a low-pressure cold-gas cell filled with CO have been examined. For the excitation of the Q-branch of the transition, the laser was tuned from 230.04 to 230.11 nm, with a step width of 0.0005 nm. Simulated spectra were calculated in advance with a simulation tool called NOCO-Spectra and showed good agreement with the experimental data. Finally, the rotational temperature of CO in the flow was evaluated by comparison of the CO-excitation spectra and the calculated spectra using a correlation automated rotational fitting procedure.
Laser-Induced Fluorescence Investigations for Temperature Measurements in a Carbon Dioxide Flow
Journal of Thermophysics and Heat Transfer ; 32 , 1 ; 216-225
2017-07-31
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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