Solution of Boltzmann equation for highly nonequilibrium diatomic gases rotational translational energy relaxationThe direct simulation Monte Carlo method is applied to solve the Boltzmann equation for collisions between internally excited diatomic gases in highly nonequilibrium states. The semiclassical transition probability is incorporated in the simulation for energy exchange between rotational and translational energy. The results provide details on the fundamental mechanisms of gas kinetics where analytical methods are impractical. The validity of the local Maxwellian assumption and relaxation time, rotational-translational energy transition, and a velocity analysis of the inelastic collision are discussed in detail.
Document ID
19800050734
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Yoshikawa, K. K. (NASA Ames Research Center Moffett Field, Calif., United States)