Multi-environment probability density function method for modelling turbulent combustion using realistic chemical kinetics. (English) Zbl 1180.80065
The present paper for the first time extends the MEPDF method to incorporate realistic chemical kinetics for turbulent combustion modelling. A CFD model is developed which implements the MEPDF with multiple reactive scalars into a RANS-based turbulent flow solver. An efficient and robust solution scheme based on pseudo time-splitting and ISAT is used to solve the resulting system of equations from the MEPDF model. Combined with a 19-species augmented reduced mechanism for methane oxidation, the new method is applied to stimulate a series of well-characterized bluff-body stabilized turbulent flames that show different levels of finite rate chemistry effects.
Reviewer: Messoud A. Efendiev (Berlin)
MSC:
| 80A25 | Combustion |
| 80A30 | Chemical kinetics in thermodynamics and heat transfer |
| 76F25 | Turbulent transport, mixing |
| 80M25 | Other numerical methods (thermodynamics) (MSC2010) |
Keywords:
multi-environment probability density function method; direct quadrature method of moments; turbulent combustion modelling; bluff-body flame; realistic chemical kineticsReferences:
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