Abstract
Vibrational relaxation rates from Schwartz-Slawsky- Herzfeld theory and the forced-harmonic oscillator model are used to study the flow of nitrogen in the stagnation region of a blunt body. The mass conservation equations are coupled to the momentum and total energy equations, and solved using an implicit finite-volume computational fluid dynamics method. The effects of single- and multiple-quantum vibration translation transitions and vibration-vibration transitions are studied. Also, the effect of the mass diffusion of the evicted oscillators across the shock layer is investigated. It is found that highly non-Boltzmann vibrational distributions are present in the flow field. Also, the forced-harmonic oscillator model predicts dissociation from the low vibrational levels only.
| Original language | English (US) |
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| Title of host publication | Fluid Dynamics Conference |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| Pages | 1-10 |
| Number of pages | 10 |
| State | Published - Jan 1 1996 |
| Event | Fluid Dynamics Conference, 1996 - New Orleans, United States Duration: Jun 17 1996 → Jun 20 1996 |
Other
| Other | Fluid Dynamics Conference, 1996 |
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| Country/Territory | United States |
| City | New Orleans |
| Period | 6/17/96 → 6/20/96 |