Defining Phase Interactions

Interactions between phases are specified within the Multiphase Interaction Model node. In this case, the continuous gas phase interacts with the dispersed phase through drag force and heat transfer. The dispersed phase interacts with the fluid film phase through impingement.

To specify the interaction between the dispersed phase and the fluid film phase:

  1. In the Physics 1 continuum, right-click the Models > Multiphase Interaction > Phase Interactions node and select New > Film Phase > DMP Phase.
  2. Rename Phase Interaction 1 to Film-DMP.
  3. For the phase interaction, Film-DMP, open the Film-DMP Model Selection dialog and select Impingement from the Optional Models group box.
To specify the interaction between the dispersed phase and the continuous phase:
  1. Right-click the Models > Multiphase Interaction > Phase Interactions node and select New > DMP Phase > Physics 1.
  2. Rename Phase Interaction 1 to DMP-Continuum.
  3. For the phase interaction, DMP-Continuum, open the DMP-Continuum Model Selection dialog and select the following physics models:
    Group box Model
    Optional Models Interaction Length Scale
    Heat Transfer
    Drag Force
  4. Select the DMP-Continuum > Models > Interaction Length Scale Model node and set the following properties:
    Node Property Setting
    Interaction Length Scale Method Constant
    Value 2.1E-5 m
  5. Save the simulation.