
Accession Number : AD0746704
Title : Coupled Radiative and Vibrational Nonequilibrium in Carbon Dioxide,
Corporate Author : STANFORD UNIV CALIF DEPT OF AERONAUTICS AND ASTRONAUTICS
Personal Author(s) : Tripodi,Robert
Report Date : AUG 1970
Pagination or Media Count : 228
Abstract : The interaction of radiative and vibrational nonequilibrium in flows of carbondioxide gas was studied. Radiative transfer and vibrational rate equations were developed and then applied to acoustic problems in a planeparallel geometry. A rigidrotorharmonicoscillator model was assumed. Microscopic transfer equations are written for each of the three most important bands. The microscopic equations are then summed over all possible transitions to yield the microscopic transfer equations. It was found that the rate equations can be applied for any vibrationvibration transition or combination of such transitions. The linearized radiative transfer and vibrational rate equations specialized to a planeparallel geometry are applied in conjunction with the linearized onedimensional equations of gas dynamics. A study is made in particular of the acoustic waves caused in CO2 in a closed tube by a periodic input of radiation. Two special cases  the spectrophone and tuned case  are examined and possible experimental procedures are discussed. (Author)
Descriptors : (*CARBON DIOXIDE, *ELECTRON TRANSITIONS), MOLECULAR ENERGY LEVELS, VIBRATION, INTERACTIONS, MATHEMATICAL ANALYSIS, REACTION KINETICS, GAS FLOW, MATHEMATICAL MODELS
Subject Categories : Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE