Two-dimensional calculation model for hazardous substances formation in combustion products of a spark-ignition engine
https://doi.org/10.51187/0135-3152-2023-2-31-41
Abstract
Introduction (problem statement and relevance). Improvement of environmental parameters of internal combustion engines is one of the most relevant tasks of the domestic transport engineering. Calculation support allows reducing the time and raising the efficiency of works for refining of the bench work process in order to meet the required parameters. The paper is devoted to development of a two-dimensional calculation model for hazardous substances formation in combustion products of spark-ignition engines based on the non-equilibrium kinetic models of formation of nitrogen oxides and carbon monoxide.
Methodology and research methods. Computational methods for differential equations (ordinary and partial ones) are applied. Non-equilibrium kinetics of hazardous substances formation in combustion products is considered. The work process is calculated based on a combination of the mesh control-volume method and determination of the observable flame rate based on the experimental data (taking into account the development stage of the flame source).
Scientific novelty and results. The new calculation method for flame propagation in the spark-ignition engine is suggested. The developed model combines such advantages as good predictability and short time of calculation.
Practical significance. The model can be applied, in particular, to preliminary planning of three-dimensional calculations of the work process or their check in the absence of experimental data (at the stage of preliminary/concept design). The calculation results can be used as initial data for modeling of the exhaust gas aftertreatment (additional purification) system.
About the Author
S. S. Sergeev
Federal State Unitary Enterprise “Central Scientific Research Automobile and Automotive Engines Institute”
(FSUE “NAMI”)
Russian Federation
Russian Federation
PhD (Eng), design engineer, Center for Numerical Analysis and Virtual Validation
Moscow 125438
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Review
For citations:
Sergeev S.S. Two-dimensional calculation model for hazardous substances formation in combustion products of a spark-ignition engine. Trudy NAMI. 2023;(2):31-41. (In Russ.) https://doi.org/10.51187/0135-3152-2023-2-31-41
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