Sources in multiphase flow are very similar to those in single phase flow. Information on the single-phase source documentation is available. For details, see Sources in the CFX-Solver Theory Guide. Information on setting source terms in CFX-Pre is available in Sources Tab in the CFX-Pre User's Guide.
There are two types of sources in multiphase flow:
Fluid-specific sources. For details, see Fluid-Specific Sources.
Bulk sources. For details, see Bulk Sources.