Selecting a k-ε turbulence model for investigating n-decane combustion in a diesel engine combustion chamber

Andrii Avramenko

Abstract

The results of a comparative numerical simulation of combustion and formation of toxic substances in a diesel engine combustion chamber are given. Experimental findings were used to identify the mathematical models. The impact of the standard, RNG and realizable k-ε turbulence models on the accuracy of numerical simulation of combustion and the formation of toxic substances was studied. The realizable k-ε turbulence model was shown to provide a closer agreement of computational and experimental data during simulation of the diesel engine process when turbulent flows are described.

Keywords

n-decane combustion; turbulence model; toxic substances; diesel engine; ecological indicators

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References

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