HYBRID NAVIER-STOKES MONTE-CARLO METHOD FOR REACTING FLOW CALCULATIONS

The axisymmetric hypersonic flow about a blunt-faced cylindrical forebody has been simulated using a newly developed hybrid Navier-Stokes/Monte Carlo method. This method couples a statistical ("Monte Carlo") treatment of the chemical reactions with a continuum ("Navier-Stokes") description of the gas mixture and the species transport. It facilitates the inclusion of more accurate chemical reaction models, surface catalytic reactions, etc., based on the use of collision/reaction cross sections (or probabilities), while it retains most of the run-time advantages of a full continuum method. The computed results have been compared with results obtained using a full continuum method and those of a direct simulation Monte Carlo method.