NON-EQUILIBRIUM PROCESSES IN NITROGEN PLASMA BEHIND STRONG SHOCK WAVE FRONT
An analysis of the processes with neutral and charged atoms and molecules of nitrogen behind strong shock waves is conducted on the base of thermally non-equilibrium kinetic model with electronically excited particles and vibrational-electronic-chemistry coupling. The model is validated against experimental data such as measurements of electron number density behind the shock wave front considering the maximum quantities of radiation intensity of nitrogen bands. It is determined that the model without regard for processes involving electronically excited atoms and molecules overestimates the concentrations of both charged and neutral species. The one-dimensional stationary gas and plasma flows are considered. The electronically excited atoms, molecules, and ions are presented as separate components of mixture for every electronic state. The rate constant data on two vibrational relaxation processes, 8 processes with vibrational excitation by electron impact, 79 chemical and plasmachemical reactions, as well as 6 processes of spontaneous radiation at nitrogen are presented.