- Conference date: 20-25 July 2002
- Location: Whistler, British Columia (Canada)
The generalized depletion equations, considering state‐to‐state kinetics of dissociating Nitrogen, are solved to predict the extent of vibrational depletion in the temperature range of 3000–10000 K. For the case of dissociation from the last vibrational quantum level, depletion of vibrational population is high. Vibration‐translation (V‐T) energy transfers make a major contribution to depletion whereas the effect of vibration‐vibration (V‐V) exchanges is minor. The dissociation rates predicted using the vibration‐dissociation coupling model are significantly lower than the Park’s rates and helps explain the restricted success of the Park’s dissociation model in certain temperature ranges of hypersonic flow past a blunt body. Underprediction of shock‐standoff distance of 17% by Park dissociation model for a Mach 11.18 flow past a blunt body is predicted well by the present model.
- Dissociation energies
- Hypersonic flows
- Energy transfer
- Equations of state
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