A simplified reaction mechanism for soot formation in nonpremixed flames

A reaction mechanism for soot formation in non-premixed flames is proposed and tested for different flame configurations and fuels. The mechanism is combined with detailed and simplified gas phase chemistry for ethylene and methane flames respectively. The cases considered include counterflow ethylene flames with oxygen enriched and depleted oxidant streams, a buoyant axi-symmetric methane-air flame and a methane-air flame on a Wolfhard-Parker burner. It is shown that for all these configurations excellent agreement can be obtained for the predictions of soot volume fractions and particle characteristics.

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