Browse Publications Technical Papers 2003-01-0068
2003-03-03

Investigation of the Fuel Injection, Mixing and Combustion Processes in an SIDI Engine using Quasi-3D LIF Imaging 2003-01-0068

The influence of the bulk in-cylinder flow on the spray evolution, evaporation, fuel-air mixing and subsequent flame propagation has been studied in an optical SIDI engine. Quantitative LIF imaging of equivalence ratios was used to characterize the mixture formation and the influence of the local equivalence ratio at the time of spark on the flame propagation. Two extreme bulk flow conditions - high and low swirl - were investigated and pronounced differences in mixture homogeneity and flame propagation were found and characterized.

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