VOF-Lagrangian Phase Interaction Model Reference

Lagrangian models track individual dispersed particles through the domain, while VOF Multiphase models track the volume fractions of two or more segregated phases. When using both modeling techniques (for example, water droplets spraying through the air into a large volume of water), you can link the two forms of modeling with a VOF-Lagrangian phase interaction model.

The VOF-Lagrangian Phase Interaction model allows you to select the phases that are involved in the interaction when Lagrangian particles impinge on or strip from a VOF free surface. If you want to model sub-grid scale stripping from the VOF interface, you use the VOF-Lagrangian User Stripping model. If you want to simplify small VOF blobs by using Lagrangian parcels, you use the Resolved VOF-Lagrangian Transition model. You can activate all models simultaneously in the same phase interaction.
注When using overset for VOF Lagrangian interaction, parcels' sources for mass, momentum, and energy are distributed to acceptor cells and transferred correctly to the VOF phase.
Provided By Multiphase Interaction > Phase Interactions > [phase interaction] > Models > Phase Interaction Topology
Example Node Path Multiphase Interaction > Phase Interactions > [phase interaction] > Models > VOF-Lagrangian Phase Interaction
Requires

In the physics continuum:

  • Material: Multiphase
  • Multiphase Model: Volume of Fluid (VOF)
  • Optional Models: Multiphase Interaction (selected automatically) , Lagrangian Multiphase
A VOF phase and a corresponding Lagrangian phase defined.
Properties Key properties are: Lagrangian Phase, VOF Phase. See VOF-Lagrangian Phase Interaction Properties.
Activates Physics Models
Optional Models:

VOF-Lagrangian Phase Interaction Properties

Lagrangian Phase
The Lagrangian phase of the interacting pair.
VOF Phase
The VOF phase of the interacting pair.