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Premixed Combustion Modeling in an SI Engine Considering the Burned Gas Composition
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 11, 2005 by SAE International in United States
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Conventional combustion models are suitable for predicting flame propagation for a wrinkled flamelet configuration. But they cannot predict the burned gas composition. This causes the overestimation of burned gas temperature and pressure. A modified method of combustion simulation was established to calculate the chemical composition and to investigate their ultimate fate in the burned gas region.
In this work, the secondary products of combustion process, like CO and H2, were considered as well as the primary products like CO2 and H2O. A 3-dimensional CFD program was used to simulate the turbulent combustion and a zero dimensional equilibrium code was used to predict the chemical composition of burned gas. With this simple connection, more reasonable temperature and pressure approaching the real phenomena were predicted without additional time costs.
CitationKwon, H., Min, K., Choi, H., and Lee, H., "Premixed Combustion Modeling in an SI Engine Considering the Burned Gas Composition," SAE Technical Paper 2005-01-2108, 2005, https://doi.org/10.4271/2005-01-2108.
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