Investigation of fuel injection pattern on soot formation and oxidation processes in a light-duty diesel engine using integrated CFD-reduced chemistry

► A reduced chemistry of 112 reactions with 46 species was coupled with a CFD code. ► Effects of split-main injection parameters on soot processes were studied. ► Start of injection, split-main ratio and dwell period were parameters of interest. ► Fuel mass/duration of injection and flame temperature shape the soot processes. ► Power law relates soot surface growth rate and mass fraction of rich, hot charge.