5. Cycle simulation. Two-zone modeling
Multi-zone modeling can take into account the specificities of combustion (progression, flame front propagation, diffusion combustion); in some cases, it can take into account the geometry of the combustion chamber, and can specify a specific composition for the different zones. Our presentation will focus on the case of two zones (figure 18 ); extension to a larger number of zones poses no difficulty in theory, although some sub-models will need to be adapted. The two-zone case is justified for the simulation of a spark-ignition engine cycle with homogeneous load. A distinction is made between a zone containing only fresh gases and another containing only burnt gases. The separation surface represents a zone of progression of the premixing flame front. Each zone has a...
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Cycle simulation. Two-zone modeling
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