Detailed Kinetic Soot Modeling in a Diesel Jet Flame

摘要

The detailed chemical kinetics was implemented into the KIVA-3V multidimensional CFD code to clarify the soot formation process in diesel jet flame. The detailed soot model is based on a combination of a detailed reaction mechanism and kinetic soot model based on the method of moments, which begins with fuel pyrolysis, followed by the formation of polycyclic aromatic hydrocarbons, their growth and coagulation into spherical particles, and finally, surface growth and oxidation of the particles. The model can describes the spatial and temporal properties of soot formation such as soot precursors distributions, nucleation rate and surface reaction rate.