ANSYS ICEM CFD - Unigraphics Interface

PHOENICS Interface

Solver	PHOENICS
Type of mesh	multiblock structured
Dimension	2D and 3D

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The PHOENICS interface allows you to:

create a PHOENICS Element Neutral file (PEN) as input for solver (CCM)
create multi-block grids for PHOENICS-GCV, including unnaturally linked blocks
create multiblock grids including fine-grid embedding and many-to-one links
create a monoblock grid
attach PHOENICS boundary conditions to surfaces or blocks
label domains with property marker flags
set initial values

Note: ICEM 2D grids can be used to create a planar PHOENICS 2D grid with a defined thickness. If the PHOENICS 2D grid is non-planar or has a non-constant thickness you need to create an ICEM 3D grid with 1 layer of elements.

Phoenics solver CCM

The translator produces the PHOENICS Element Neutral file (PEN) and a set of grid files, one for each domain (i1, i2, ... in). The PEN file contains a skeleton Q1 definition, which activates PHOENICS in 3D BFC mode, with the multiblock/fine-grid embedding option. These files are then read by the general PHOENICS input translator to create the input file Q1, and grid files G1, G2, .., Gn.

Phoenics solver GCV

The translator produces the PHOENICS input file (Q1), and a set of grid files, one for each domain (G1, G2, Gn). The Q1 file contains a skeleton definition, which activates PHOENICS in 3D BFC mode, with the GCV multi-block option.

Creating the PHOENICS Input Files

The translator writes the PHOENICS input files using the multiblock structured mesh, the boundary condition file and the topology file. To create the PHOENICS input files, select the translator "Phoenics" in the "Output" menu. After clicking "Write input" you can specify options for the PHOENICS interface:

Select a Q1 options: NEW, ADD or OLD. NEW means that any existing Q1 will be overwritten. ADD means that the non-grid contents will be added to the end of an existing Q1, and OLD means that only the grid information will be written.
Select a PHOENICS Solver: GCV or CCM
Boundaru condition options: Write, Don't write.
option to write a monoblock grid
option to define a thickness (this is only used for planar 2D grids).
give the name of the topology file
give the name of the boundary condition file
specify the domain file directory
specify the output directory. This is normally the project directory, but can be reset to any convenient PHOENICS working directory.

Defining boundary conditions, properties and entity name

To define boundary condition click on the "BC" icon in the "Output" menu. Supported boundary conditions are:

Boundary conditions	Value(s)
Inflow	Name X-Velocity (UCRT) Y-Velocity (VCRT) Z-Velocity (WCRT) Temperature (TEMP1) Turbulent (KE) Dissipation Rate of KE (EP) Density (DEN1)
Fixed Pressure	Name External Pressure (P1) External Temperature (TEMP1) External Turbulent KE External Dissipation Rate of KE (EP)
Wall Condition	Name External Temperature (TEMP1)
Heat Source	Name Surface Heat Flux (TEMP1)
Property/Initial Value	Name Initial Pressure (P1) Initial X-Velocity (UCRT) Initial Y-Velocity (VCRT) Initial Z-Velocity (WCRT) Initial Temperature (TEMP1) Initial Turbulent KE Initial Dissipation Rate of KE (EP) Initial Density (DEN1) Property Flag (PRPS)
Porosity Setting	Name Volume Porosity (VPOR) I-directed porosity (EPOR) J-directed porosity (NPOR) K-directed porosity (HPOR)
Set Source	Name

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