Detailed modeling of soot formation in a partially stirred plug flow reactor

摘要

The purpose of this work is to propose a detailed model for the formation of soot in turbulent reacting flow and to use this model to study a carbon black furnace. The model is based on a combination of a detailed reaction mechanism to calculate the gas phase chemistry, a detailed kinetic soot model based on the method of moments, and the joint composition probability density function(PDF)of these scalar quantities. Two problems which arise when modeling the formation of soot in turbulent flows using a PDF approach, Are studied. A consistency study of the combined scalar-soot moment approach reveals that the molecular Diffusion term in the PDF-equation can be closed by the IEM and Curl-type mixing models.