One of the most important and poorly understood processes in hypersonic flows is the coupling between a molecule’s vibrational state and its dissociation rate. The details of this process affect a vehicle’s aerodynamics and thermal protection requirements. It also has a direct effect on the level of ionization in the flow field. In this paper, we examine the vibrational relaxation and dissociation process near a high Mach number shock wave. The forced-harmonic oscillator and Schwartz-Slawsky-Herzfeld vibrational relaxation models with resonant vibration-vibration exchange are used to simulate the vibrational exchange mechanisms. A classical impulse dissociation model is used to simulate the N2-N2 and N2-N dissociation processes.
|Original language||English (US)|
|State||Published - Jan 1 1998|
|Event||33rd Thermophysics Conference, 1999 - Norfolk, United States|
Duration: Jun 28 1999 → Jul 1 1999
|Other||33rd Thermophysics Conference, 1999|
|Period||6/28/99 → 7/1/99|