Creo Flow Analysis > Preprocessing > Defining Physics > Multiphase > Output Variables
Output Variables
This section describes the outputs you can obtain from the Multiphase module. The following types of data are available for output from the Multiphase module:
• Primary Variables
• Property Variables
• Integrated Quantities
Output of Primary Variables
Primary variables are the fundamental variables for a given set of modules and models. They are required as part of the solution.
Primary Variables for Multiphase Module
Label in Variables List
Label in X-Y Plot Menu
Label in points.txt
Definition
Units
Display or Output Options
Volume Fraction [Component Name]
[Component Name] Volume Fraction
vFrac_[Name]_
Volume Fraction
At a Point and in the GUI Display Window
Primary variables are automatically activated for selected geometric entities such as boundaries, derived surfaces, interfaces, streamlines, particles, or volumes depending on the modules and models that are selected.
Output of Property Variables
Property variables are the physical properties for the fluids and solids in the domain. They are required as part of the solution.
Physical Properties for Multiphase Module
Label in Variables List
Label in X-Y Plot Menu
Label in points.txt
Definition
Units
Display or Output Options
Density [Component]
Density
rho_[comp]_
Component Density
kg/m3
At a Point and in the GUI Display Window
Viscosity [Component]
Viscosity
mu_[comp]_
Component Viscosity
Pa-s
Same
Physical property output for the Multiphase module is automatically activated for selected volumes and boundaries, except point probes, depending on the models that are selected.
Output of Integrated Quantities
Integrated output are quantities that are integrated over a Boundary, Interface, or Volume.
Integrated Quantities for Multiphase Module
Label in Variables List
Label in X-Y Plot Menu
Label in integral.txt
Units
Definition
Relevant Geometric Entity
Volume
Volume
vol_tot_
m3
Total volume of Volume
Volume
Component [Name]: Mass Fraction
Component [Name]: Mass Fraction
mfa_[Name]_
Ave. Mass Fraction of the component
Volume
Component [Name]: Volume Fraction
Component [Name]: Volume Fraction
vfa_[Name]_
Ave. Volume Fraction of the component
Volume
Component [Name]: Phase Mass
Component [Name]: Mass
tot_m_[Name]_
kg
Total Mass of the Component
Volume
Component [Name]: Phase Volume
Component [Name]: Volume
tot_v_[Name]_
m3
Volume of the component
Volume
Component [Name]: Mass Flux
Component [Name]: Mass Flux
m_flux_[Name]_
kg/s
Mass Flux of Component “Name”@ BC
Open Boundary
Component [Name]: Volumetric Flux
Component [Name]: Volumetric Flux
v_flux_[Name]_
m3/s
Volumetrix Flux of Component “Name” @ BC
Open Boundary
Phase Area (Fraction)
Component [Name]: Phase Area
phase_area_[Name]_
m2
Area of Component “Name”@ BC
Closed Boundary
Phase Area (Fraction)
Component [Name]: Phase Area Fraction
phase_af_[Name]_
Ave. Volume Fraction of Component “Name”@ BC
Closed Boundary
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