The Equilibrium Flux Method for the Calculation of Flows with Nonequilibrium Chemical Reactions
Abstract
The equilibrium flux method (D. I. Pullin, J. Comput. Phys.34, 231 (1980)) is a kinetic theory based finite volume method for calculating the flow of a compressible ideal gas. It is shown here that, in effect, the method solves the Euler equations with added pseudodissipative terms and that it is a natural upwinding scheme. The method can be easily modified so that the flow of a chemically reacting gas mixture can be calculated. Results from the method for a onedimensional nonequilibrium reacting flow are shown to agree well with a conventional continuum solution. Results are also presented for the calculation of a plane twodimensional flow, at hypersonic speed, of a dissociating gas around a blunt nosed body.
 Publication:

Journal of Computational Physics
 Pub Date:
 January 1989
 DOI:
 10.1016/00219991(89)900958
 Bibcode:
 1989JCoPh..80..204M
 Keywords:

 Chemical Equilibrium;
 Chemical Reactions;
 Equilibrium Flow;
 Nonequilibrium Conditions;
 Compressible Flow;
 Euler Equations Of Motion;
 Gas Mixtures;
 Ideal Gas;
 Reaction Kinetics;
 Fluid Mechanics and Heat Transfer