A Study of Steady Flow of a Polyatomic Gas by Extended Thermodynamics with Six Fields

Steady flow of a polyatomic gas is studied by the extended thermodynamic theory with six independent fields (ET₆). It is shown that the ET₆ theory can describe the effects on a flow due to the relaxation process of the internal motion such as molecular rotation and vibration, which can not be predicted by the Euler perfect fluid theory. And thereby characteristic features of the ET₆ theory itself can be elucidated. (paper)