Coupled Radiative and Vibrational Nonequilibrium in Carbon Dioxide,
Abstract
The interaction of radiative and vibrational nonequilibrium in flows of carbon-dioxide gas was studied. Radiative transfer and vibrational rate equations were developed and then applied to acoustic problems in a plane-parallel geometry. A rigid-rotor-harmonic-oscillator 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 vibration-vibration transition or combination of such transitions. The linearized radiative transfer and vibrational rate equations specialized to a plane-parallel geometry are applied in conjunction with the linearized one-dimensional 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1970
- Accession Number
- AD0746704
Entities
People
- Robert Tripodi
Organizations
- Stanford University