Statistics – Computation
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983acaau..10..573k&link_type=abstract
(International Symposium on Rarefied Gas Dynamics, 13th, Novosibirsk, USSR, July 5-9, 1982) Acta Astronautica (ISSN 0094-5765),
Statistics
Computation
Carbon Dioxide Lasers, Gasdynamic Lasers, Infrared Lasers, Nonequilibrium Thermodynamics, Vibrational Spectra, Laser Cavities, Radiant Flux Density, Spectral Bands, Spectral Energy Distribution
Scientific paper
A method for determination of the vibrational distributions and populations of individual vibrational levels of vibrationally nonequilibrated carbon dioxide in bend-stretch manifold and asymmetric stretching mode was developed and substantiated. The method is based on the measurements of integrated radiation intensity in the wide spectral intervals of the 15-micron CO2 band and total emissivities of its appropriate Q-branches. Computations of radiation intensities and emissivities in P and R-branches were performed by using vibrational-rotational band models and in Q-branches by the direct 'line-by-line' integration. It was shown that vibrational temperature of CO2 asymmetric stretching mode may be determined from the measurements of integrated radiation intensity of the 15-micron band. The populations of individual levels of the bend-stretch manifold may be obtained from the measurements of total emissivities of some Q-branches of the 15-micron band. The procedure of the CO2 lower-vibrational-level population determination under the conditions typical of 18-micron and 9-11-micron CO2 laser cavities is described.
Kriuchkov S. I.
Kudriavtsev N. N.
Novikov Sergey
No associations
LandOfFree
Determination of vibrational CO2 distributions in thermodynamically-nonequilibrated rarefied flows by use of radiational characteristics in the 15-micron band does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Determination of vibrational CO2 distributions in thermodynamically-nonequilibrated rarefied flows by use of radiational characteristics in the 15-micron band, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of vibrational CO2 distributions in thermodynamically-nonequilibrated rarefied flows by use of radiational characteristics in the 15-micron band will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-741338