The Rotating Machinery, Laminar Flow, Phase Field multiphysics interface (

) found under the
Multiphase Flow >
Rotating Machinery, Two-Phase Flow, Phase Field branch (

), is a multiphysics interface designed to track the interface between two immiscible fluids in equipment containing one or more rotating parts. The flow is assumed to be laminar, that is, to be of low to moderate Reynolds number.
When adding the Laminar Two-Phase Flow, Phase Field multiphysics interface, a
Laminar Flow and a
Phase Field in Fluids interface are added to the Model Builder. A
Moving Mesh interface with a
Rotating Domain node is added automatically in the
Model Builder under the
Definitions node. In addition, a multiphysics coupling feature,
The Two-Phase Flow, Phase Field Coupling Feature, is added automatically under the
Multiphysics node.
By default the fluid flow discretization is set to P1+P1, and the phase field discretization is set to
Linear. This combination provides improved conservation of the integral of the phase field variable when using the nonconservative form of the phase field equations.