Current models for the dissociation rate and the vibration-dissociation coupling process are used to simulate several recent hypervelocity experiments. It is shown that all of the models accurately predict the shock standoff distance for a spherical, blunt-body flow. However, the computational results do not agree with a set of experiments that was designed to be sensitive to the chemical kinetics model. In these highly separated flows, the equilibrium dissociation rate must be increased or decreased by a factor of about four to obtain reasonable agreement with the data. This puts into doubt the accuracy of the reaction rate, or indicates that some other unknown thermo-chemical process occurs in these flows.
|Original language||English (US)|
|State||Published - Jan 1 1997|
|Event||32nd Thermophysics Conference, 1997 - Atlanta, United States|
Duration: Jun 23 1997 → Jun 25 1997
|Other||32nd Thermophysics Conference, 1997|
|Period||6/23/97 → 6/25/97|