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On the Coupling of Vibrational Relaxation with the Dissociation−Recombination Kinetics: From Dynamics to Aerospace Applications

2004; American Chemical Society; Volume: 108; Issue: 41 Linguagem: Inglês

10.1021/jp048847v

1520-5215

M. Capitelli, Gianpiero Colonna, Fabrizio Esposito,

Cold Atom Physics and Bose-Einstein Condensates

A refined set of state-to-state dissociation cross sections for the process N + N2(v, j) → 3N has been obtained by the quasiclassical trajectory (QCT) method and used in a 1D code describing the expansion of a dissociation−recombination mixture through a converging−diverging nozzle. The relevant vibrational kinetics includes V−V and V−T energy transfers as well as dissociation−recombination processes. The results show strong nonequilibrium vibrational distributions and non-Arrhenius dissociation rates along the nozzle axis as a consequence of the recombination process.