The procedure for setting up and solving a general multiphase problem is outlined below, and described in detail in the subsections that follow. Remember that only the steps that are pertinent to general multiphase calculations are shown here. For information about inputs related to other models that you are using in conjunction with the multiphase model, see the appropriate sections for those models.
See also Section 23.12.1 for guidelines on simplifying Eulerian multiphase simulations.
Define Models Multiphase...
See Sections 23.9.1 and 23.10.1 for details.
If the material you want to use is not in the database, create a new material. See Section 8.1.2 for details about copying from the database and creating new materials. See Sections 23.10.5 and 23.11.3 for additional information about specifying material properties for a compressible phase (VOF and mixture models only). It is possible to turn off reactions in some materials by selecting none in the Reactions drop-down list under Properties in the Materials panel.
| If your model includes a particulate (granular) phase, you will need to create a new material for it in the
fluid materials category (
not the solid materials category).
See Sections 23.9.3- 23.12.2 for details.
Define Models Viscous...
See Section 23.12.3 for details.
Define Operating Conditions...
See Section 23.9.4 for details.
Define Boundary Conditions...
See Section 23.9.8 for details.
Solve Controls Solution...
See Sections 23.10.4 and 23.14 for details.
Solve Initialize Patch...
See Section 23.14.1 for details.
See Sections 23.14 and 23.15 for details.
This section provides instructions and guidelines for using the VOF, mixture, and Eulerian multiphase models.