Temperature stratification induced ignition regimes for gasoline surrogates at engine-relevant conditions
Published in Combustion Science and Technology, 2024
End-gas auto-ignition leading to knocking combustion is one of the major barriers to achieving higher thermal efficiencies in downsized boosted spark-ignition engines. Using the established one-dimensional (1D) theoretical and computational framework, the effect of average temperature (including NTC range), initial pressure, and ethanol addition are investigated. Moreover, appearance of NTC chemistry-related events i.e. coolspots, secondary ignition kernels, and off-centered ignition are analyzed using 1D simulations.
Citation:: Shahanaghi, A., Karimkashi, S., Kaario, O., Vuorinen, V., Sarjovaara, T., & Tripathi, R. (2024). Temperature stratification induced ignition regimes for gasoline surrogates at engine-relevant conditions. Combustion Science and Technology, 196(11), 1702-1742.
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