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Accurate boundary conditions for multicomponent reactive flows. (English) Zbl 0818.76047
Procedures to define accurate boundary conditions for reactive flows described by Navier-Stokes equations are discussed. A formulation is based on one-dimensional characteristic waves relations at the boundaries. Examples of application in several different computations performed with mixtures of gases and using detailed chemistry and thermodynamic modeling are described. In all cases, acoustic waves, entropy waves, and flames are proved to propagate without perturbation through the boundaries.

MSC:
76M20 Finite difference methods applied to problems in fluid mechanics
76V05 Reaction effects in flows
80A32 Chemically reacting flows
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