Direct monte carlo simulation of oxygen dissociation behind shock waves

A study is conducted on the nonequilibrium dissociation of Oxygen behind shock waves. Numerical simulations are performed by means of the DSMC method. A state-to-state vibrational kinetic model is adopted specified by a set of microscopic cross sections. The cross sections for atom-molecule processes are derived from QCT trajectory calculations and include multiquantum transitions whereas for the molecule-molecule processes semiclassical rate constants for monoquantum transitions have been inverted numerically. Results for a strong shock in Oxygen are reported. © 2003 by Domenico Bruno. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.