Multiphase Reactions refer to reactions involving components in different phases, and is a combination of simultaneous phase change and conversion of some materials into others. The capability is available for particle tracking calculations, but not Eulerian-Eulerian multiphase flows for this release of Ansys CFX. When setting up a multiphase reaction, the Combustion Model setting in the Reaction details view is not required because Finite Rate Chemistry is the only available option for multiphase reactions (although for gas phase reactions, other reaction/combustion models may be applied).

A general multiphase reaction generates three classes of fluxes:

Multiphase reactions are specified in the Reaction details view by setting the Option to Multiphase on the Basic Settings form. For details, see Multiphase: Basic Settings in the CFX-Pre User's Guide.