Non-equilibrium dissociation rates in expanding flows

✍ Scribed by E.V. Kustova; E.A. Nagnibeda; T.Yu. Alexandrova; A. Chikhaoui

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 249 KB
• Volume: 377
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/s0009-2614(03)01213-2

✦ Synopsis

In this Letter, non-equilibrium dissociation rates in expanding gas flows are studied taking into account state-tostate vibrational-chemical kinetics. A comparison of the results obtained in the state-to-state approach with the ones based on the quasi-stationary two-temperature vibrational distributions for harmonic and anharmonic oscillators and on the thermal equilibrium one-temperature distribution is presented. The influence of vibrational energy transition probabilities and nozzle profiles on vibrational level populations and dissociation rates is also discussed.