Equations of motion of vibrationally excited gases for a model of harmonic oscillators
Abstract
Gasdynamic equations are derived from the Boltzmann equation for flows of vibrationally excited gases, with allowance for intermodal exchanges of vibrational energy. Conditions of the occurrence of a multiple temperature state with respect to vibrational degrees of freedom in the presence of rapid intermodal exchanges are formulated and explained. The analysis is based on a model of molecular harmonic oscillators; a onecomponent gas of twomode molecules is considered for the sake of simplicity.
 Publication:

TsAGI Uchenye Zapiski
 Pub Date:
 1981
 Bibcode:
 1981ZaTsA..12...22A
 Keywords:

 Equations Of Motion;
 Gas Dynamics;
 Harmonic Oscillators;
 Molecular Oscillators;
 Boltzmann Transport Equation;
 Degrees Of Freedom;
 Laser Materials;
 Molecular Gases;
 NavierStokes Equation;
 Fluid Mechanics and Heat Transfer