Vibrational Specific Simulation of Nonequilibrium Radiation from Shock-Heated Air

The vibration-specific State-to-State approach is employed to described vibrational relaxation and reactive processes in shock-heated air. The gas mixture consists of the five chemical species N-2, O-2, NO, N and O. Making use of two different sets of quasi-classical trajectory calculations for the Zeldovich exchange reactions of NO formation on theoretically calculated potential energy surfaces, the thermal and chemical kinetics of NO is discussed in detail. Then the emission spectra are determined and compared to shock tube measurements.