详细的碳烟成核和氧化模型

A detailed soot nucleation model considering the dimerization of various PAHs and an oxidation model considering different effective oxidation collision coefficients of different soot sizes were proposed.The models are applicable to different fuel and flame conditions.A simplified calculation method was proposed,which can realize the fuzzy decomposition of arbitrary size soot into the typical soot space,thus avoiding the increased computational cost due to the consideration of numerous dimerization reactions of various PAHs,and meanwhile realizing the matching with the sectional aerosol model.The calculating results of an ethylene flame and a Jet A-1 flame show that the new model can improve the prediction accuracy of soot volume fraction,especially that of the peak value.