The formation of soot in gaseous flames can result both in significantly enhanced radiative heat transfer, and in particulate pollution. Soot is important in flames in which the carbon to oxygen mole ratio is approaching unity, and its formation can be calculated using the model of Magnussen. For details, see Soot Model in the CFX-Solver Theory Guide.

The following topics will be discussed in this section:

A material describing soot must be created in the Material details view. The effect of soot on radiation can then be specified in the Radiation Properties section, as well as its density. For details, see Material Properties Tab in the CFX-Pre User's Guide.