An assumed pdf approach for the calculation of supersonic mixing layers

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:5327722

Baurle, R A; Drummond, J P; Hassan, H A ^[1]

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1. North Carolina State University, Raleigh (United States) NASA, Langley Research Center, Hampton, VA (United States)

In an effort to predict the effect that turbulent mixing has on the extent of combustion, a one-equation turbulence model is added to an existing Navier-Stokes solver with finite-rate chemistry. To average the chemical-source terms appearing in the species-continuity equations, an assumed pdf approach is also used. This code was used to analyze the mixing and combustion caused by the mixing layer formed by supersonic coaxial H2-air streams. The chemistry model employed allows for the formation of H2O2 and HO2. Comparisons are made with recent measurements using laser Raman diagnostics. Comparisons include temperature and its rms, and concentrations of H2, O2, N2, H2O, and OH. In general, good agreement with experiment was noted. 8 refs.

• Research Organization: National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center
• OSTI ID: 5327722
• Report Number(s): CONF-920157--; AIAA-Paper--92-0182
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION KINETICS
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID FLOW
KINETICS
MATHEMATICAL MODELS
MIXING
NAVIER-STOKES EQUATIONS
OXIDATION
PARTIAL DIFFERENTIAL EQUATIONS
PERFORMANCE
REACTION KINETICS
SUPERSONIC FLOW
THERMOCHEMICAL PROCESSES
TURBULENT FLOW